Netgear 340u
Noah Taber
noahtaber at gmail.com
Sat May 3 18:25:56 PDT 2014
Bjorn, I've been trying to get output that looks like your's but I can't
seem to get it yet.
Anyway, because I can't successfully get 'usbmon' to work, I started
heading down a different path.
I figured out how to send AT commands to the 340u via osx.
Please see below:
ati
Manufacturer: Sierra Wireless, Incorporated
Model: AirCard 340U
Revision: SWI9X15C_01.05.11.52 r16619 ntgrbc-fwbuild1 2013/06/28 19:04:08
IMEI: 013323000120510
IMEI SV: 7
FSN: EV310101160610
+GCAP: +CGSM
OK
I also started looking into QMI vs MBIM:
AT!UDUSBCOMP=?
0 - reserved NOT SUPPORTED
1 - reserved NOT SUPPORTED
2 - reserved NOT SUPPORTED
3 - reserved NOT SUPPORTED
4 - reserved NOT SUPPORTED
5 - reserved NOT SUPPORTED
6 - DM NMEA AT QMI SUPPORTED
7 - DM NMEA AT RMNET1 RMNET2 RMNET3 SUPPORTED
8 - DM NMEA AT MBIM SUPPORTED
9 - MBIM SUPPORTED
10 - NMEA MBIM SUPPORTED
11 - DM MBIM SUPPORTED
12 - DM NMEA MBIM SUPPORTED
13 - Config1: comp6 Config2: comp8 NOT SUPPORTED
14 - Config1: comp6 Config2: comp9 SUPPORTED
15 - Config1: comp6 Config2: comp10 NOT SUPPORTED
16 - Config1: comp6 Config2: comp11 NOT SUPPORTED
17 - Config1: comp6 Config2: comp12 NOT SUPPORTED
18 - Config1: comp7 Config2: comp8 NOT SUPPORTED
19 - Config1: comp7 Config2: comp9 SUPPORTED
20 - Config1: comp7 Config2: comp10 NOT SUPPORTED
21 - Config1: comp7 Config2: comp11 NOT SUPPORTED
22 - Config1: comp7 Config2: comp12 NOT SUPPORTED
AT!UDUSBCOMP?
!UDUSBCOMP: 6
AT!UDPID?
!UDPID:
APP : 9051
BOOT: 9051
AT!UDPID=?
APP BOOT
9041, 9040
9051, 9051
9053, 9053
9054, 9054
9056, 9056
68A2, 68A2
68B1, 68B0
Should I start playing with !UDPID and !UDUSBCOMP? What are your values?
The reason I started doing this is because David wrote that my
bNumConfigurations looks different. Maybe this is why I am unable to
connect through the raspberry pi.
I am not able to perform the AT commands through linux for some reason.
Let me know if there are any other AT commands I should run.
Thanks again.
Noah
On Wed, Apr 30, 2014 at 12:30 AM, Bjørn Mork <bjorn at mork.no> wrote:
> Noah Taber <noahtaber at gmail.com> writes:
>
> > I'm still trying to figure out usbmon. I can't get it to spit out
> readable
> > information.
> >
> > I did have a minor break through though. I used a pepwave router to
> remove
> > the linux patch described on the netgear website. To my understanding,
> > this takes the 340u out of direct ip mode. The qmi-network command now
> > works correctly. It even issues a Packet data handle. I am able to
> start
> > and stop a data connection using the qmi-network and the display on the
> > 340u changes accordingly.
>
> That's good. Then we know there is nothing unexpected going on with the
> modem.
>
> > The problem is, is that I cannot get the device to retrieve an IP using
> > dhclient. I'm still dead in the water.
>
> Still sounds like there is an issue with bulk data transmission. The
> serial port on USB interface #3 (usually mapped to /dev/ttyUSB2) does
> still not respond to AT commands either?
>
> > Hints?
>
> All of this is of course much simpler with tshark or wireshark, which
> will dissect the data for you. But figuring out usbmon output is not
> too difficult, and it's availiable on any Linux platform with USB no
> matter how simple and embedded it is..
>
>
> A basic usbmon example:
>
> 1) check which bus the modem is on and try to make sure it's the only
> device on that bus (to avoid confusion):
>
> bjorn at nemi:~$ lsusb
> Bus 005 Device 011: ID 1199:68a2 Sierra Wireless, Inc.
> Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 007 Device 002: ID 8087:07dc Intel Corp.
> Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 003 Device 003: ID 0a5c:2145 Broadcom Corp. BCM2045B (BDC-2.1)
> [Bluetooth Controller]
> Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>
> So my modem is on bus #5 and is the only device there. Good
>
>
> 2) load the module and mount debugfs (if not already done):
>
> nemi:/home/bjorn# modprobe usbmon
> nemi:/home/bjorn# mount -t debugfs none /sys/kernel/debug
> mount: none already mounted or /sys/kernel/debug busy
> mount: according to mtab, debug is already mounted on /sys/kernel/debug
>
> Good
>
>
> 3) select the correct file to look at:
>
> nemi:/home/bjorn# ls -l /sys/kernel/debug/usb/usbmon/
> total 0
> -rw------- 1 root root 0 Apr 30 11:10 0s
> -rw------- 1 root root 0 Apr 30 11:10 0u
> -rw------- 1 root root 0 Apr 30 11:10 1s
> -rw------- 1 root root 0 Apr 30 11:10 1t
> -rw------- 1 root root 0 Apr 30 11:10 1u
> -rw------- 1 root root 0 Apr 30 11:10 2s
> -rw------- 1 root root 0 Apr 30 11:10 2t
> -rw------- 1 root root 0 Apr 30 11:10 2u
> -rw------- 1 root root 0 Apr 30 11:10 3s
> -rw------- 1 root root 0 Apr 30 11:10 3t
> -rw------- 1 root root 0 Apr 30 11:10 3u
> -rw------- 1 root root 0 Apr 30 11:10 4s
> -rw------- 1 root root 0 Apr 30 11:10 4t
> -rw------- 1 root root 0 Apr 30 11:10 4u
> -rw------- 1 root root 0 Apr 30 11:10 5s
> -rw------- 1 root root 0 Apr 30 11:10 5t
> -rw------- 1 root root 0 Apr 30 11:10 5u
> -rw------- 1 root root 0 Apr 30 11:10 6s
> -rw------- 1 root root 0 Apr 30 11:10 6t
> -rw------- 1 root root 0 Apr 30 11:10 6u
> -rw------- 1 root root 0 Apr 30 11:10 7s
> -rw------- 1 root root 0 Apr 30 11:10 7t
> -rw------- 1 root root 0 Apr 30 11:10 7u
> -rw------- 1 root root 0 Apr 30 11:10 8s
> -rw------- 1 root root 0 Apr 30 11:10 8t
> -rw------- 1 root root 0 Apr 30 11:10 8u
>
>
> We were interested in bus #5. 't/u' signifies different API variants.
> 'u' is the newest and contains a superset of the 't' variant. The 's'
> files are just statistics dumps.
>
> So we choose the /sys/kernel/debug/usb/usbmon/5u file, and start reading
> from that in a terminal dedicated to this (you can of course dump to
> file or netcat or whatever instead). I like to use tee to both capture
> the result an see it scrolling by:
>
> nemi:/home/bjorn# cat /sys/kernel/debug/usb/usbmon/5u |tee /tmp/5u.log
>
>
> 4) start the network connection:
>
> bjorn at nemi:~$ qmicli -d /dev/cdc-wdm0 --wds-start-network=telenor
> --client-no-release-cid
> [/dev/cdc-wdm0] Network started
> Packet data handle: '41223440'
> [/dev/cdc-wdm0] Client ID not released:
> Service: 'wds'
> CID: '5'
>
>
>
> 5) observe the results:
>
>
> ffff880231416ac0 277634302 S Ci:5:001:0 s a3 00 0000 0001 0004 4 <
> ffff880231416ac0 277634389 C Ci:5:001:0 0 4 = 00010000
> ffff880231416ac0 277634456 S Ci:5:001:0 s a3 00 0000 0002 0004 4 <
> ffff880231416ac0 277634496 C Ci:5:001:0 0 4 = 00010000
> ffff880231416ac0 277634552 S Ci:5:001:0 s a3 00 0000 0003 0004 4 <
> ffff880231416ac0 277634591 C Ci:5:001:0 0 4 = 00010000
> ffff880231416ac0 277634646 S Ci:5:001:0 s a3 00 0000 0004 0004 4 <
> ffff880231416ac0 277634696 C Ci:5:001:0 0 4 = 07050000
> ffff880231416ac0 277634753 S Ci:5:001:0 s a3 00 0000 0005 0004 4 <
> ffff880231416ac0 277634793 C Ci:5:001:0 0 4 = 00010000
> ffff880231416ac0 277634849 S Ci:5:001:0 s a3 00 0000 0006 0004 4 <
> ffff880231416ac0 277634887 C Ci:5:001:0 0 4 = 00010000
> ffff880230812f40 277634913 S Ii:5:001:1 -115:2048 4 <
> ffff880231416ac0 277635029 S Ci:5:001:0 s a3 00 0000 0004 0004 4 <
> ffff880231416ac0 277635077 C Ci:5:001:0 0 4 = 07050000
> ffff880231416ac0 277635129 S Co:5:001:0 s 23 01 0002 0004 0000 0
> ffff880231416ac0 277635171 C Co:5:001:0 0 0
> ffff880231416940 277666311 S Ci:5:001:0 s a3 00 0000 0004 0004 4 <
> ffff880231416940 277666699 C Ci:5:001:0 0 4 = 03050400
> ffff880231416940 277682287 S Co:5:001:0 s 23 01 0012 0004 0000 0
> ffff880231416940 277682354 C Co:5:001:0 0 0
> ffff880231416940 277682417 S Ci:5:011:0 s 80 00 0000 0000 0002 2 <
> ffff880231416940 277682954 C Ci:5:011:0 0 2 = 0100
> ffff880216087e80 277683408 S Ii:5:011:5 -115:16 64 <
> ffff8800a87b1940 277684334 S Co:5:011:0 s 21 00 0000 0008 0010 16 =
> 010f0000 00000001 22000400 01010001
> ffff8800a87b1940 277686627 C Co:5:011:0 0 16 >
> ffff880216087e80 277689734 C Ii:5:011:5 0:16 8 = a1010000 08000000
> ffff8800831f5280 277689755 S Ci:5:011:0 s a1 01 0000 0008 1000 4096 <
> ffff880216087e80 277689779 S Ii:5:011:5 -115:16 64 <
> ffff8800831f5280 277690936 C Ci:5:011:0 0 24 = 01170080 00000101 22000c00
> 02040000 00000001 02000105
> ffff8800a87b1940 277691585 S Co:5:011:0 s 21 00 0000 0008 0017 23 =
> 01160000 01050001 0020000a 00140700 74656c65 6e6f72
> ffff8800a87b1940 277692355 C Co:5:011:0 0 23 >
> ffff880216087e80 278043798 C Ii:5:011:5 0:16 8 = a1010000 08000000
> ffff8800831f5280 278043824 S Ci:5:011:0 s a1 01 0000 0008 1000 4096 <
> ffff880216087e80 278043854 S Ii:5:011:5 -115:16 64 <
> ffff8800831f5280 278044315 C Ci:5:011:0 0 27 = 011a0080 01050201 0020000e
> 00020400 00000000 01040010 057502
> ffff880216087e80 278047341 C Ii:5:011:5 -2:16 0
> ffff8802314164c0 280694523 S Co:5:001:0 s 23 03 0002 0004 0000 0
> ffff8802314164c0 280694612 C Co:5:001:0 0 0
> ffff880230812f40 280710439 C Ii:5:001:1 -2:2048 0
>
>
> 6) run the dhcp client
>
> nemi:/home/bjorn# dhclient -d -4 wwan0
> Internet Systems Consortium DHCP Client 4.2.2
> Copyright 2004-2011 Internet Systems Consortium.
> All rights reserved.
> For info, please visit https://www.isc.org/software/dhcp/
>
> Listening on LPF/wwan0/c6:b0:7b:58:94:9d
> Sending on LPF/wwan0/c6:b0:7b:58:94:9d
> Sending on Socket/fallback
> DHCPDISCOVER on wwan0 to 255.255.255.255 port 67 interval 8
> DHCPREQUEST on wwan0 to 255.255.255.255 port 67
> DHCPOFFER from 176.75.154.234
> DHCPACK from 176.75.154.234
> bound to 176.75.154.233 -- renewal in 3413 seconds.
>
>
> 7) observe the results
>
>
> ffff880216053ac0 338734248 S Ci:5:001:0 s a3 00 0000 0001 0004 4 <
> ffff880216053ac0 338734672 C Ci:5:001:0 0 4 = 00010000
> ffff880216053ac0 338735384 S Ci:5:001:0 s a3 00 0000 0002 0004 4 <
> ffff880216053ac0 338736267 C Ci:5:001:0 0 4 = 00010000
> ffff880216053ac0 338736951 S Ci:5:001:0 s a3 00 0000 0003 0004 4 <
> ffff880216053ac0 338737091 C Ci:5:001:0 0 4 = 00010000
> ffff880216053ac0 338737228 S Ci:5:001:0 s a3 00 0000 0004 0004 4 <
> ffff880216053ac0 338737663 C Ci:5:001:0 0 4 = 07050000
> ffff880216053ac0 338737800 S Ci:5:001:0 s a3 00 0000 0005 0004 4 <
> ffff880216053ac0 338737932 C Ci:5:001:0 0 4 = 00010000
> ffff880216053ac0 338738059 S Ci:5:001:0 s a3 00 0000 0006 0004 4 <
> ffff880216053ac0 338738227 C Ci:5:001:0 0 4 = 00010000
> ffff880230812f40 338738432 S Ii:5:001:1 -115:2048 4 <
> ffff880216053ac0 338738742 S Ci:5:001:0 s a3 00 0000 0004 0004 4 <
> ffff880216053ac0 338738866 C Ci:5:001:0 0 4 = 07050000
> ffff880216053ac0 338738986 S Co:5:001:0 s 23 01 0002 0004 0000 0
> ffff880216053ac0 338739110 C Co:5:001:0 0 0
> ffff88008319ec40 338770290 S Ci:5:001:0 s a3 00 0000 0004 0004 4 <
> ffff88008319ec40 338770431 C Ci:5:001:0 0 4 = 03050400
> ffff880216053ac0 338786288 S Co:5:001:0 s 23 01 0012 0004 0000 0
> ffff880216053ac0 338786364 C Co:5:001:0 0 0
> ffff880216053ac0 338786434 S Ci:5:011:0 s 80 00 0000 0000 0002 2 <
> ffff880216053ac0 338786938 C Ci:5:011:0 0 2 = 0100
> ffff880216053ac0 338787573 S Bi:5:011:6 -115 1514 <
> ffff8800a862ac40 338787889 S Bi:5:011:6 -115 1514 <
> ffff88022f81c280 338787907 S Bi:5:011:6 -115 1514 <
> ffff8800a862a580 338787924 S Bi:5:011:6 -115 1514 <
> ffff88022f0537c0 338787941 S Bi:5:011:6 -115 1514 <
> ffff88021edfca00 338787958 S Bi:5:011:6 -115 1514 <
> ffff88021edfc100 338787975 S Bi:5:011:6 -115 1514 <
> ffff8802317c6700 338787991 S Bi:5:011:6 -115 1514 <
> ffff88022f37ee80 338788009 S Bi:5:011:6 -115 1514 <
> ffff88022f37ef40 338788025 S Bi:5:011:6 -115 1514 <
> ffff880229ec6580 338788045 S Bi:5:011:6 -115 1514 <
> ffff880229ec6040 338788072 S Bi:5:011:6 -115 1514 <
> ffff8802160537c0 338788095 S Bi:5:011:6 -115 1514 <
> ffff880216053880 338788111 S Bi:5:011:6 -115 1514 <
> ffff880216053f40 338788135 S Bi:5:011:6 -115 1514 <
> ffff880216053100 338788234 S Bi:5:011:6 -115 1514 <
> ffff880216053580 338788251 S Bi:5:011:6 -115 1514 <
> ffff880216053400 338788268 S Bi:5:011:6 -115 1514 <
> ffff880216053e80 338788284 S Bi:5:011:6 -115 1514 <
> ffff88021ef8d700 338788300 S Bi:5:011:6 -115 1514 <
> ffff8801c0094280 338788320 S Bi:5:011:6 -115 1514 <
> ffff8801f6f33280 338788337 S Bi:5:011:6 -115 1514 <
> ffff88021ef8dc40 338788354 S Bi:5:011:6 -115 1514 <
> ffff88006784d940 338788371 S Bi:5:011:6 -115 1514 <
> ffff88021607f880 338788387 S Bi:5:011:6 -115 1514 <
> ffff88021607f100 338788404 S Bi:5:011:6 -115 1514 <
> ffff88021607f4c0 338788420 S Bi:5:011:6 -115 1514 <
> ffff880216053940 338788437 S Bi:5:011:6 -115 1514 <
> ffff88022f81c7c0 338788460 S Bi:5:011:6 -115 1514 <
> ffff88022f81c640 338788476 S Bi:5:011:6 -115 1514 <
> ffff88021607fdc0 338788496 S Bi:5:011:6 -115 1514 <
> ffff8800a84d6280 338788513 S Bi:5:011:6 -115 1514 <
> ffff8800a8555280 338788529 S Bi:5:011:6 -115 1514 <
> ffff88021ef93100 338788547 S Bi:5:011:6 -115 1514 <
> ffff8801f6f33d00 338788563 S Bi:5:011:6 -115 1514 <
> ffff880231256ac0 338788580 S Bi:5:011:6 -115 1514 <
> ffff8800a866e640 338788597 S Bi:5:011:6 -115 1514 <
> ffff8800830bbc40 338788613 S Bi:5:011:6 -115 1514 <
> ffff8801f63cb040 338788642 S Bi:5:011:6 -115 1514 <
> ffff8801f63cbc40 338788659 S Bi:5:011:6 -115 1514 <
> ffff8800a862a340 338788686 S Bi:5:011:6 -115 1514 <
> ffff8801f6f33700 338788703 S Bi:5:011:6 -115 1514 <
> ffff8801fd363400 338788719 S Bi:5:011:6 -115 1514 <
> ffff8800831f5100 338788735 S Bi:5:011:6 -115 1514 <
> ffff8800a862ad00 338788751 S Bi:5:011:6 -115 1514 <
> ffff8800a862ab80 338788773 S Bi:5:011:6 -115 1514 <
> ffff8801fd22e880 338788790 S Bi:5:011:6 -115 1514 <
> ffff8801f6343880 338788806 S Bi:5:011:6 -115 1514 <
> ffff88008319ef40 338788823 S Bi:5:011:6 -115 1514 <
> ffff8800830bbb80 338788840 S Bi:5:011:6 -115 1514 <
> ffff8801f63cb400 338788865 S Bi:5:011:6 -115 1514 <
> ffff8800a8555580 338788882 S Bi:5:011:6 -115 1514 <
> ffff88020b294a00 338788899 S Bi:5:011:6 -115 1514 <
> ffff8801f6343100 338788915 S Bi:5:011:6 -115 1514 <
> ffff8801f6343400 338788931 S Bi:5:011:6 -115 1514 <
> ffff8800a8555c40 338788948 S Bi:5:011:6 -115 1514 <
> ffff88007fd89580 338788965 S Bi:5:011:6 -115 1514 <
> ffff8800a85554c0 338788985 S Bi:5:011:6 -115 1514 <
> ffff8802160ccf40 338789002 S Bi:5:011:6 -115 1514 <
> ffff8802160cce80 338789019 S Bi:5:011:6 -115 1514 <
> ffff8800a862a1c0 338794218 S Bo:5:011:4 -115 90 = 33330000 0016c6b0
> 7b58949d 86dd6000 00000024 00010000 00000000 00000000
> ffff8800a862a1c0 338794545 C Bo:5:011:4 0 90 >
> ffff8802072d4f40 338819689 S Bo:5:011:4 -115 342 = ffffffff ffffc6b0
> 7b58949d 08004510 01480000 00008011 39960000 0000ffff
> ffff8802072d4f40 338820066 C Bo:5:011:4 0 342 >
> ffff880216053ac0 338830335 C Bi:5:011:6 0 320 = c6b07b58 949d0250 f3000000
> 08004500 01320000 0000ff11 2450b04b 9aeab04b
> ffff880216053ac0 338830363 S Bi:5:011:6 -115 1514 <
> ffff8802072d4f40 338831167 S Bo:5:011:4 -115 342 = ffffffff ffffc6b0
> 7b58949d 08004510 01480000 00008011 39960000 0000ffff
> ffff8802072d4f40 338831303 C Bo:5:011:4 0 342 >
> ffff8800a862ac40 338833100 C Bi:5:011:6 0 320 = c6b07b58 949d0250 f3000000
> 08004500 01320001 0000ff11 244fb04b 9aeab04b
> ffff8800a862ac40 338833126 S Bi:5:011:6 -115 1514 <
> ffff880231256040 339046327 S Bo:5:011:4 -115 90 = 33330000 0016c6b0
> 7b58949d 86dd6000 00000024 00010000 00000000 00000000
> ffff880231256040 339046447 C Bo:5:011:4 0 90 >
> ffff880231256040 339054391 S Bo:5:011:4 -115 78 = 3333ff58 949dc6b0
> 7b58949d 86dd6000 00000018 3aff0000 00000000 00000000
> ffff880231256040 339054845 C Bo:5:011:4 0 78 >
> ffff880231256040 340054436 S Bo:5:011:4 -115 90 = 33330000 0016c6b0
> 7b58949d 86dd6000 00000024 0001fe80 00000000 0000c4b0
> ffff88007fd894c0 340054600 S Bo:5:011:4 -115 70 = 33330000 0002c6b0
> 7b58949d 86dd6000 00000010 3afffe80 00000000 0000c4b0
> ffff880231256040 340054632 C Bo:5:011:4 0 90 >
> ffff88007fd894c0 340054683 C Bo:5:011:4 0 70 >
> ffff88008319ec40 340330363 S Bo:5:011:4 -115 90 = 33330000 0016c6b0
> 7b58949d 86dd6000 00000024 0001fe80 00000000 0000c4b0
> ffff88008319ec40 340330711 C Bo:5:011:4 0 90 >
> ffff88022f81c280 342710597 C Bi:5:011:6 -104 0
> ffff8800a862a580 342710622 C Bi:5:011:6 -104 0
> ffff88022f0537c0 342710635 C Bi:5:011:6 -104 0
> ffff88021edfca00 342710661 C Bi:5:011:6 -104 0
> ffff88021edfc100 342710673 C Bi:5:011:6 -104 0
> ffff8802317c6700 342710686 C Bi:5:011:6 -104 0
> ffff88022f37ee80 342710698 C Bi:5:011:6 -104 0
> ffff88022f37ef40 342710709 C Bi:5:011:6 -104 0
> ffff880229ec6580 342710745 C Bi:5:011:6 -104 0
> ffff880229ec6040 342710757 C Bi:5:011:6 -104 0
> ffff8802160537c0 342710768 C Bi:5:011:6 -104 0
> ffff880216053880 342710782 C Bi:5:011:6 -104 0
> ffff880216053f40 342710794 C Bi:5:011:6 -104 0
> ffff880216053100 342710805 C Bi:5:011:6 -104 0
> ffff880216053580 342710818 C Bi:5:011:6 -104 0
> ffff880216053400 342710830 C Bi:5:011:6 -104 0
> ffff880216053e80 342710841 C Bi:5:011:6 -104 0
> ffff88021ef8d700 342710855 C Bi:5:011:6 -104 0
> ffff8801c0094280 342710866 C Bi:5:011:6 -104 0
> ffff8801f6f33280 342710877 C Bi:5:011:6 -104 0
> ffff88021ef8dc40 342710891 C Bi:5:011:6 -104 0
> ffff88006784d940 342710902 C Bi:5:011:6 -104 0
> ffff88021607f880 342710913 C Bi:5:011:6 -104 0
> ffff88021607f100 342710926 C Bi:5:011:6 -104 0
> ffff88021607f4c0 342710937 C Bi:5:011:6 -104 0
> ffff880216053940 342710948 C Bi:5:011:6 -104 0
> ffff88022f81c7c0 342710961 C Bi:5:011:6 -104 0
> ffff88022f81c640 342710972 C Bi:5:011:6 -104 0
> ffff88021607fdc0 342710983 C Bi:5:011:6 -104 0
> ffff8800a84d6280 342710996 C Bi:5:011:6 -104 0
> ffff8800a8555280 342711007 C Bi:5:011:6 -104 0
> ffff88021ef93100 342711018 C Bi:5:011:6 -104 0
> ffff8801f6f33d00 342711048 C Bi:5:011:6 -104 0
> ffff880231256ac0 342711059 C Bi:5:011:6 -104 0
> ffff8800a866e640 342711070 C Bi:5:011:6 -104 0
> ffff8800830bbc40 342711083 C Bi:5:011:6 -104 0
> ffff8801f63cb040 342711094 C Bi:5:011:6 -104 0
> ffff8801f63cbc40 342711105 C Bi:5:011:6 -104 0
> ffff8800a862a340 342711118 C Bi:5:011:6 -104 0
> ffff8801f6f33700 342711129 C Bi:5:011:6 -104 0
> ffff8801fd363400 342711139 C Bi:5:011:6 -104 0
> ffff8800831f5100 342711152 C Bi:5:011:6 -104 0
> ffff8800a862ad00 342711163 C Bi:5:011:6 -104 0
> ffff8800a862ab80 342711174 C Bi:5:011:6 -104 0
> ffff8801fd22e880 342711187 C Bi:5:011:6 -104 0
> ffff8801f6343880 342711198 C Bi:5:011:6 -104 0
> ffff88008319ef40 342711209 C Bi:5:011:6 -104 0
> ffff88008319ef40 342711508 S Co:5:011:0 s 00 03 0001 0000 0000 0
> ffff8800830bbb80 342711607 C Bi:5:011:6 -104 0
> ffff8801f63cb400 342711626 C Bi:5:011:6 -104 0
> ffff8800a8555580 342711638 C Bi:5:011:6 -104 0
> ffff88020b294a00 342711650 C Bi:5:011:6 -104 0
> ffff8801f6343100 342711661 C Bi:5:011:6 -104 0
> ffff8801f6343400 342711673 C Bi:5:011:6 -104 0
> ffff8800a8555c40 342711684 C Bi:5:011:6 -104 0
> ffff88007fd89580 342711709 C Bi:5:011:6 -104 0
> ffff8800a85554c0 342711721 C Bi:5:011:6 -104 0
> ffff8802160ccf40 342711733 C Bi:5:011:6 -104 0
> ffff8802160cce80 342711744 C Bi:5:011:6 -104 0
> ffff880216053ac0 342711756 C Bi:5:011:6 -104 0
> ffff8800a862ac40 342711768 C Bi:5:011:6 -104 0
> ffff88008319ef40 342711955 C Co:5:011:0 0 0
> ffff88008319ef40 342712175 S Co:5:001:0 s 23 03 0002 0004 0000 0
> ffff88008319ef40 342712396 C Co:5:001:0 0 0
> ffff880230812f40 342726244 C Ii:5:001:1 -2:2048 0
> ffff8800a862ac40 344195040 S Ci:5:001:0 s a3 00 0000 0001 0004 4 <
> ffff8800a862ac40 344195345 C Ci:5:001:0 0 4 = 00010000
> ffff8800a862ac40 344195424 S Ci:5:001:0 s a3 00 0000 0002 0004 4 <
> ffff8800a862ac40 344195504 C Ci:5:001:0 0 4 = 00010000
> ffff8800a862ac40 344195571 S Ci:5:001:0 s a3 00 0000 0003 0004 4 <
> ffff8800a862ac40 344195616 C Ci:5:001:0 0 4 = 00010000
> ffff8800a862ac40 344195680 S Ci:5:001:0 s a3 00 0000 0004 0004 4 <
> ffff8800a862ac40 344195725 C Ci:5:001:0 0 4 = 07050000
> ffff8800a862ac40 344195789 S Ci:5:001:0 s a3 00 0000 0005 0004 4 <
> ffff8800a862ac40 344195838 C Ci:5:001:0 0 4 = 00010000
> ffff8800a862ac40 344195902 S Ci:5:001:0 s a3 00 0000 0006 0004 4 <
> ffff8800a862ac40 344195952 C Ci:5:001:0 0 4 = 00010000
> ffff880230812f40 344195979 S Ii:5:001:1 -115:2048 4 <
> ffff8800a862ac40 344196093 S Ci:5:001:0 s a3 00 0000 0004 0004 4 <
> ffff8800a862ac40 344196133 C Ci:5:001:0 0 4 = 07050000
> ffff8800a862ac40 344196188 S Co:5:001:0 s 23 01 0002 0004 0000 0
> ffff8800a862ac40 344196227 C Co:5:001:0 0 0
> ffff8800a862ac40 344226279 S Ci:5:001:0 s a3 00 0000 0004 0004 4 <
> ffff8800a862ac40 344226408 C Ci:5:001:0 0 4 = 03050400
> ffff8800a862ac40 344242261 S Co:5:001:0 s 23 01 0012 0004 0000 0
> ffff8800a862ac40 344242319 C Co:5:001:0 0 0
> ffff8800a862ac40 344242387 S Ci:5:011:0 s 80 00 0000 0000 0002 2 <
> ffff8800a862ac40 344242900 C Ci:5:011:0 0 2 = 0300
> ffff8800a862ac40 344242977 S Co:5:011:0 s 00 01 0001 0000 0000 0
> ffff8800a862ac40 344243258 C Co:5:011:0 0 0
> ffff88008319ef40 344243428 S Bo:5:011:4 -115 70 = 33330000 0002c6b0
> 7b58949d 86dd6000 00000010 3afffe80 00000000 0000c4b0
> ffff8800a862ac40 344243655 S Bi:5:011:6 -115 1514 <
> ffff880224818dc0 344243676 S Bi:5:011:6 -115 1514 <
> ffff880216053ac0 344243696 S Bi:5:011:6 -115 1514 <
> ffff8802160cce80 344243714 S Bi:5:011:6 -115 1514 <
> ffff88008319ef40 344243757 C Bo:5:011:4 0 70 >
> ffff88008319ef40 344243792 S Bi:5:011:6 -115 1514 <
> ffff8802160ccf40 344243818 S Bi:5:011:6 -115 1514 <
> ffff8800a85554c0 344243835 S Bi:5:011:6 -115 1514 <
> ffff88007fd89580 344243853 S Bi:5:011:6 -115 1514 <
> ffff8800a8555c40 344243870 S Bi:5:011:6 -115 1514 <
> ffff8801f6343400 344243890 S Bi:5:011:6 -115 1514 <
> ffff8801f6343100 344243907 S Bi:5:011:6 -115 1514 <
> ffff88020b294a00 344243924 S Bi:5:011:6 -115 1514 <
> ffff8800a8555580 344243947 S Bi:5:011:6 -115 1514 <
> ffff8801f63cb400 344243965 S Bi:5:011:6 -115 1514 <
> ffff8800830bbb80 344243992 S Bi:5:011:6 -115 1514 <
> ffff8801f6343880 344244009 S Bi:5:011:6 -115 1514 <
> ffff8801fd22e880 344244027 S Bi:5:011:6 -115 1514 <
> ffff8800a862ab80 344244044 S Bi:5:011:6 -115 1514 <
> ffff8800a862ad00 344244064 S Bi:5:011:6 -115 1514 <
> ffff8800831f5100 344244081 S Bi:5:011:6 -115 1514 <
> ffff8801fd363400 344244109 S Bi:5:011:6 -115 1514 <
> ffff8801f6f33700 344244125 S Bi:5:011:6 -115 1514 <
> ffff8800a862a340 344244140 S Bi:5:011:6 -115 1514 <
> ffff8801f63cbc40 344244161 S Bi:5:011:6 -115 1514 <
> ffff8801f63cb040 344244180 S Bi:5:011:6 -115 1514 <
> ffff8800830bbc40 344244195 S Bi:5:011:6 -115 1514 <
> ffff8800a866e640 344244214 S Bi:5:011:6 -115 1514 <
> ffff880231256ac0 344244230 S Bi:5:011:6 -115 1514 <
> ffff8801f6f33d00 344244246 S Bi:5:011:6 -115 1514 <
> ffff88021ef93100 344244265 S Bi:5:011:6 -115 1514 <
> ffff8800a8555280 344244280 S Bi:5:011:6 -115 1514 <
> ffff8800a84d6280 344244295 S Bi:5:011:6 -115 1514 <
> ffff88021607fdc0 344244310 S Bi:5:011:6 -115 1514 <
> ffff88022f81c640 344244325 S Bi:5:011:6 -115 1514 <
> ffff88022f81c7c0 344244347 S Bi:5:011:6 -115 1514 <
> ffff880216053940 344244363 S Bi:5:011:6 -115 1514 <
> ffff88021607f4c0 344244378 S Bi:5:011:6 -115 1514 <
> ffff88021607f100 344244403 S Bi:5:011:6 -115 1514 <
> ffff88021607f880 344244419 S Bi:5:011:6 -115 1514 <
> ffff88006784d940 344244434 S Bi:5:011:6 -115 1514 <
> ffff88021ef8dc40 344244453 S Bi:5:011:6 -115 1514 <
> ffff8801f6f33280 344244469 S Bi:5:011:6 -115 1514 <
> ffff8801c0094280 344244484 S Bi:5:011:6 -115 1514 <
> ffff88021ef8d700 344244499 S Bi:5:011:6 -115 1514 <
> ffff880216053e80 344244517 S Bi:5:011:6 -115 1514 <
> ffff880216053400 344244532 S Bi:5:011:6 -115 1514 <
> ffff880216053580 344244556 S Bi:5:011:6 -115 1514 <
> ffff880216053100 344244571 S Bi:5:011:6 -115 1514 <
> ffff880216053f40 344244586 S Bi:5:011:6 -115 1514 <
> ffff880216053880 344244601 S Bi:5:011:6 -115 1514 <
> ffff8802160537c0 344244617 S Bi:5:011:6 -115 1514 <
> ffff880229ec6040 344244632 S Bi:5:011:6 -115 1514 <
> ffff880229ec6580 344244647 S Bi:5:011:6 -115 1514 <
> ffff88022f37ef40 344244663 S Bi:5:011:6 -115 1514 <
> ffff88022f37ee80 344244688 S Bi:5:011:6 -115 1514 <
> ffff8802317c6700 344244703 S Bi:5:011:6 -115 1514 <
> ffff88021edfc100 344244723 S Bi:5:011:6 -115 1514 <
> ffff88021edfca00 344244739 S Bi:5:011:6 -115 1514 <
> ffff88022f0537c0 344244754 S Bi:5:011:6 -115 1514 <
> ffff8800a862a580 344244769 S Bi:5:011:6 -115 1514 <
> ffff8800a862ac40 346714712 C Bi:5:011:6 -104 0
> ffff880224818dc0 346714749 C Bi:5:011:6 -104 0
> ffff880216053ac0 346714768 C Bi:5:011:6 -104 0
> ffff8802160cce80 346714785 C Bi:5:011:6 -104 0
> ffff88008319ef40 346714802 C Bi:5:011:6 -104 0
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> ffff8800a85554c0 346714834 C Bi:5:011:6 -104 0
> ffff88007fd89580 346714850 C Bi:5:011:6 -104 0
> ffff8800a8555c40 346714866 C Bi:5:011:6 -104 0
> ffff8801f6343400 346714882 C Bi:5:011:6 -104 0
> ffff8801f6343100 346714898 C Bi:5:011:6 -104 0
> ffff88020b294a00 346714913 C Bi:5:011:6 -104 0
> ffff8800a8555580 346714928 C Bi:5:011:6 -104 0
> ffff8801f63cb400 346714945 C Bi:5:011:6 -104 0
> ffff8800830bbb80 346714961 C Bi:5:011:6 -104 0
> ffff8801f6343880 346714977 C Bi:5:011:6 -104 0
> ffff8801fd22e880 346714994 C Bi:5:011:6 -104 0
> ffff8800a862ab80 346715009 C Bi:5:011:6 -104 0
> ffff8800a862ad00 346715025 C Bi:5:011:6 -104 0
> ffff8800831f5100 346715041 C Bi:5:011:6 -104 0
> ffff8801fd363400 346715052 C Bi:5:011:6 -104 0
> ffff8801f6f33700 346715063 C Bi:5:011:6 -104 0
> ffff8800a862a340 346715096 C Bi:5:011:6 -104 0
> ffff8801f63cbc40 346715107 C Bi:5:011:6 -104 0
> ffff8801f63cb040 346715118 C Bi:5:011:6 -104 0
> ffff8800830bbc40 346715129 C Bi:5:011:6 -104 0
> ffff8800a866e640 346715140 C Bi:5:011:6 -104 0
> ffff880231256ac0 346715151 C Bi:5:011:6 -104 0
> ffff8801f6f33d00 346715162 C Bi:5:011:6 -104 0
> ffff88021ef93100 346715173 C Bi:5:011:6 -104 0
> ffff8800a8555280 346715184 C Bi:5:011:6 -104 0
> ffff8800a84d6280 346715195 C Bi:5:011:6 -104 0
> ffff88021607fdc0 346715206 C Bi:5:011:6 -104 0
> ffff88022f81c640 346715218 C Bi:5:011:6 -104 0
> ffff88022f81c7c0 346715228 C Bi:5:011:6 -104 0
> ffff880216053940 346715239 C Bi:5:011:6 -104 0
> ffff88021607f4c0 346715250 C Bi:5:011:6 -104 0
> ffff88021607f100 346715260 C Bi:5:011:6 -104 0
> ffff88021607f880 346715271 C Bi:5:011:6 -104 0
> ffff88006784d940 346715282 C Bi:5:011:6 -104 0
> ffff88021ef8dc40 346715293 C Bi:5:011:6 -104 0
> ffff8801f6f33280 346715309 C Bi:5:011:6 -104 0
> ffff8801c0094280 346715320 C Bi:5:011:6 -104 0
> ffff88021ef8d700 346715719 C Bi:5:011:6 -104 0
> ffff880216053e80 346715732 C Bi:5:011:6 -104 0
> ffff880216053400 346715743 C Bi:5:011:6 -104 0
> ffff880216053580 346715754 C Bi:5:011:6 -104 0
> ffff880216053100 346715764 C Bi:5:011:6 -104 0
> ffff880216053f40 346715775 C Bi:5:011:6 -104 0
> ffff880216053880 346715786 C Bi:5:011:6 -104 0
> ffff8802160537c0 346715797 C Bi:5:011:6 -104 0
> ffff880229ec6040 346715808 C Bi:5:011:6 -104 0
> ffff880229ec6580 346715825 C Bi:5:011:6 -104 0
> ffff88022f37ef40 346715837 C Bi:5:011:6 -104 0
> ffff88022f37ee80 346715848 C Bi:5:011:6 -104 0
> ffff8802317c6700 346715858 C Bi:5:011:6 -104 0
> ffff88021edfc100 346715870 C Bi:5:011:6 -104 0
> ffff88021edfca00 346715880 C Bi:5:011:6 -104 0
> ffff88022f0537c0 346715891 C Bi:5:011:6 -104 0
> ffff8800a862a580 346715902 C Bi:5:011:6 -104 0
> ffff8800a862a580 346716106 S Co:5:011:0 s 00 03 0001 0000 0000 0
> ffff8800a862a580 346716536 C Co:5:011:0 0 0
> ffff8800a862a580 346717215 S Co:5:001:0 s 23 03 0002 0004 0000 0
> ffff8800a862a580 346717262 C Co:5:001:0 0 0
> ffff880230812f40 346730218 C Ii:5:001:1 -2:2048 0
> ffff88022f0537c0 348202329 S Ci:5:001:0 s a3 00 0000 0001 0004 4 <
> ffff88022f0537c0 348202412 C Ci:5:001:0 0 4 = 00010000
> ffff88022f0537c0 348202491 S Ci:5:001:0 s a3 00 0000 0002 0004 4 <
> ffff88022f0537c0 348202542 C Ci:5:001:0 0 4 = 00010000
> ffff88022f0537c0 348202615 S Ci:5:001:0 s a3 00 0000 0003 0004 4 <
> ffff88022f0537c0 348202665 C Ci:5:001:0 0 4 = 00010000
> ffff88022f0537c0 348202737 S Ci:5:001:0 s a3 00 0000 0004 0004 4 <
> ffff88022f0537c0 348202797 C Ci:5:001:0 0 4 = 07050000
> ffff88022f0537c0 348202872 S Ci:5:001:0 s a3 00 0000 0005 0004 4 <
> ffff88022f0537c0 348202921 C Ci:5:001:0 0 4 = 00010000
> ffff88022f0537c0 348202994 S Ci:5:001:0 s a3 00 0000 0006 0004 4 <
> ffff88022f0537c0 348203072 C Ci:5:001:0 0 4 = 00010000
> ffff880230812f40 348203119 S Ii:5:001:1 -115:2048 4 <
> ffff88022f0537c0 348203189 S Ci:5:001:0 s a3 00 0000 0004 0004 4 <
> ffff88022f0537c0 348203235 C Ci:5:001:0 0 4 = 07050000
> ffff88022f0537c0 348203297 S Co:5:001:0 s 23 01 0002 0004 0000 0
> ffff88022f0537c0 348203347 C Co:5:001:0 0 0
> ffff88022f0537c0 348234277 S Ci:5:001:0 s a3 00 0000 0004 0004 4 <
> ffff88022f0537c0 348234435 C Ci:5:001:0 0 4 = 03050400
> ffff88022f0537c0 348250190 S Co:5:001:0 s 23 01 0012 0004 0000 0
> ffff88022f0537c0 348250255 C Co:5:001:0 0 0
> ffff88022f0537c0 348250327 S Ci:5:011:0 s 80 00 0000 0000 0002 2 <
> ffff88022f0537c0 348250802 C Ci:5:011:0 0 2 = 0300
> ffff88022f0537c0 348251174 S Co:5:011:0 s 00 01 0001 0000 0000 0
> ffff88022f0537c0 348251571 C Co:5:011:0 0 0
> ffff8800a862a580 348251665 S Bo:5:011:4 -115 70 = 33330000 0002c6b0
> 7b58949d 86dd6000 00000010 3afffe80 00000000 0000c4b0
> ffff88022f0537c0 348251695 S Bi:5:011:6 -115 1514 <
> ffff88021edfca00 348251715 S Bi:5:011:6 -115 1514 <
> ffff88021edfc100 348251734 S Bi:5:011:6 -115 1514 <
> ffff8802317c6700 348251753 S Bi:5:011:6 -115 1514 <
> ffff8800a862a580 348251795 C Bo:5:011:4 0 70 >
> ffff8800a862a580 348251831 S Bi:5:011:6 -115 1514 <
> ffff88022f37ee80 348251850 S Bi:5:011:6 -115 1514 <
> ffff88022f37ef40 348251866 S Bi:5:011:6 -115 1514 <
> ffff880229ec6580 348251887 S Bi:5:011:6 -115 1514 <
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> ffff8802160537c0 348251918 S Bi:5:011:6 -115 1514 <
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> ffff880216053f40 348251953 S Bi:5:011:6 -115 1514 <
> ffff880216053100 348251968 S Bi:5:011:6 -115 1514 <
> ffff880216053580 348251983 S Bi:5:011:6 -115 1514 <
> ffff880216053400 348252020 S Bi:5:011:6 -115 1514 <
> ffff880216053e80 348252040 S Bi:5:011:6 -115 1514 <
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> ffff8801c0094280 348252071 S Bi:5:011:6 -115 1514 <
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> ffff88006784d940 348252120 S Bi:5:011:6 -115 1514 <
> ffff88021607f880 348252136 S Bi:5:011:6 -115 1514 <
> ffff88021607f100 348252151 S Bi:5:011:6 -115 1514 <
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> ffff880224818dc0 348252772 S Bi:5:011:6 -115 1514 <
> ffff8800a862ac40 348252790 S Bi:5:011:6 -115 1514 <
> ffff88022f0537c0 350715023 C Bi:5:011:6 -104 0
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> ffff880216053100 350715223 C Bi:5:011:6 -104 0
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> ffff8801c0094280 350715288 C Bi:5:011:6 -104 0
> ffff8801f6f33280 350715299 C Bi:5:011:6 -104 0
> ffff88021ef8dc40 350715311 C Bi:5:011:6 -104 0
> ffff88006784d940 350715322 C Bi:5:011:6 -104 0
> ffff88021607f880 350715334 C Bi:5:011:6 -104 0
> ffff88021607f100 350715345 C Bi:5:011:6 -104 0
> ffff88021607f4c0 350715356 C Bi:5:011:6 -104 0
> ffff880216053940 350715367 C Bi:5:011:6 -104 0
> ffff88022f81c7c0 350715379 C Bi:5:011:6 -104 0
> ffff88022f81c640 350715390 C Bi:5:011:6 -104 0
> ffff88021607fdc0 350715401 C Bi:5:011:6 -104 0
> ffff8800a84d6280 350715412 C Bi:5:011:6 -104 0
> ffff8800a8555280 350715424 C Bi:5:011:6 -104 0
> ffff88021ef93100 350715435 C Bi:5:011:6 -104 0
> ffff8801f6f33d00 350715446 C Bi:5:011:6 -104 0
> ffff880231256ac0 350715457 C Bi:5:011:6 -104 0
> ffff8800a866e640 350715469 C Bi:5:011:6 -104 0
> ffff8800830bbc40 350715480 C Bi:5:011:6 -104 0
> ffff8801f63cb040 350715493 C Bi:5:011:6 -104 0
> ffff8801f63cbc40 350715504 C Bi:5:011:6 -104 0
> ffff8800a862a340 350715516 C Bi:5:011:6 -104 0
> ffff8801f6f33700 350715527 C Bi:5:011:6 -104 0
> ffff8801fd363400 350716012 C Bi:5:011:6 -104 0
> ffff8800831f5100 350716025 C Bi:5:011:6 -104 0
> ffff8800a862ad00 350716037 C Bi:5:011:6 -104 0
> ffff8800a862ab80 350716048 C Bi:5:011:6 -104 0
> ffff8801fd22e880 350716059 C Bi:5:011:6 -104 0
> ffff8801f6343880 350716070 C Bi:5:011:6 -104 0
> ffff8800830bbb80 350716081 C Bi:5:011:6 -104 0
> ffff8801f63cb400 350716092 C Bi:5:011:6 -104 0
> ffff8800a8555580 350716104 C Bi:5:011:6 -104 0
> ffff88020b294a00 350716115 C Bi:5:011:6 -104 0
> ffff8801f6343100 350716126 C Bi:5:011:6 -104 0
> ffff8801f6343400 350716137 C Bi:5:011:6 -104 0
> ffff8800a8555c40 350716148 C Bi:5:011:6 -104 0
> ffff88007fd89580 350716160 C Bi:5:011:6 -104 0
> ffff8800a85554c0 350716171 C Bi:5:011:6 -104 0
> ffff8802160ccf40 350716182 C Bi:5:011:6 -104 0
> ffff88008319ef40 350716194 C Bi:5:011:6 -104 0
> ffff8802160cce80 350716205 C Bi:5:011:6 -104 0
> ffff880216053ac0 350716217 C Bi:5:011:6 -104 0
> ffff880224818dc0 350716228 C Bi:5:011:6 -104 0
> ffff8800a862ac40 350716240 C Bi:5:011:6 -104 0
> ffff8800a862ac40 350716395 S Co:5:011:0 s 00 03 0001 0000 0000 0
> ffff8800a862ac40 350716814 C Co:5:011:0 0 0
> ffff8800a862ac40 350717217 S Co:5:001:0 s 23 03 0002 0004 0000 0
> ffff8800a862ac40 350717266 C Co:5:001:0 0 0
> ffff880230812f40 350730268 C Ii:5:001:1 -2:2048 0
>
>
> That's all!
>
> So what does all that mean/show us? The output can look cryptic at
> first, but it's actually not that complicated to figure out the
> interesting parts. The details are explained in the docs.
>
> One easy way to reduce the number of lines which contain interesting
> stuff is to note that the length varies. Any line with buffer data will
> be longer, and we are mostly interested in those lines.
>
> The Ci/Co/Bi etc part is also worth noting. This tells the transfer
> type and direction using the obvious shorthand (C = control, B = bulk,
> i = input etc). The rest of this field is addressing, and we can pretty
> much just ignore it because we know we are talking to a single function
> on a single device (unless you were unable to dedicate a bus for the test).
>
> The S/C field in front of the type+address is also of some interest.
> Each transfer will consist of one S (submit) and one C (callback) line.
> In the last part you'll notice that usbnet submits a large number of Bi
> buffers once we open the interface.
>
> The number following the type+address is an error code. You'll see that
> it often is negative, indicating some error result. This is expected,
> and part of the USB system design. You deduce a lot from the errno
> macro names, e.g. from your
>
> /lib/modules/`uname -r`/build/include/uapi/asm-generic/errno.h
>
> file (or any kernel source or whatever). So you'll see that
>
> #define ECONNRESET 104 /* Connection reset by peer */
> #define EINPROGRESS 115 /* Operation now in progress */
>
>
> Long story. Let's look at a couple of examples from the above,
> filtering out a few of the longer lines. Sending the
> 'wds-start-network' QMI command, and receiving the reply to it:
>
> ffff8800a87b1940 277691585 S Co:5:011:0 s 21 00 0000 0008 0017 23 =
> 01160000 01050001 0020000a 00140700 74656c65 6e6f72
> ffff8800831f5280 278044315 C Ci:5:011:0 0 27 = 011a0080 01050201 0020000e
> 00020400 00000000 01040010 057502
>
> The number in front of '=' is the data length everything after is the
> start of the data buffer (which includes all of it here). You don't
> need to decode the QMI. A basic sanity check is to know that it will
> always start with '01' followed by a length byte *excluding* the first
> byte. So we have 23 - 1 == 0x16 and 27 - 1 == 0x1a.
>
>
> Moving on to the bulk data, we notice that there are quite of few
> outgoing transfers starting with '3333', like this one:
>
> ffff8800a862a1c0 338794218 S Bo:5:011:4 -115 90 = 33330000 0016c6b0
> 7b58949d 86dd6000 00000024 00010000 00000000 00000000
>
> So if you know what an IPv6 ethernet multicast address looks like then
> you'll be able to guess what this is: The DHCP client taking the
> interface up triggered some MLD registrations, router solicits
> etc. We'll ignore those. We don't expect the modem to answer them
> unless we initiated an IPv6 session. But this line shows us that we are
> transmitting proper ethernet frames. The 3 first words are L2 dst and
> src addres. Then you have the ethertype (0x86dd for IPv6), followed by
> an IPv6 packet (starts with '6'). We note that the data is too
> truncated (true length is 90, but we only see the first 32 bytes) to
> actually figure out the content of the IPv6 packet. But we have more
> than enough to make sense out of it.
>
> So let's pick out the DHCP request and reply. IPv4 packets will have
> ethertype 0x0800, and the IP packet itself starts with '4'. So these
> are IPv4:
>
> ffff8802072d4f40 338819689 S Bo:5:011:4 -115 342 = ffffffff ffffc6b0
> 7b58949d 08004510 01480000 00008011 39960000 0000ffff
> ffff880216053ac0 338830335 C Bi:5:011:6 0 320 = c6b07b58 949d0250 f3000000
> 08004500 01320000 0000ff11 2450b04b 9aeab04b
> ffff8802072d4f40 338831167 S Bo:5:011:4 -115 342 = ffffffff ffffc6b0
> 7b58949d 08004510 01480000 00008011 39960000 0000ffff
> ffff8800a862ac40 338833100 C Bi:5:011:6 0 320 = c6b07b58 949d0250 f3000000
> 08004500 01320001 0000ff11 244fb04b 9aeab04b
>
> We send two requests to the ethernet broadcast address and receive two
> unicast responses from 02:50:f3:00:00:00. These packets are also too
> truncated to see the DHCP payload, but we do get the IPv4 source and
> half of the IPv4 destination address at the very end:
>
> '0000 0000ffff' => requests are sent from 0.0.0.0 to 255.255.x.x
> 'b04b 9aeab04b' => replies are sent from 176.75.154.234 to 176.75.x.x
>
> which matches what we saw from the DHCP client.
>
>
> This was the uninteresting 'when everything is OK' session. But I hope
> this example will help you figure out where things stop on the raspberry.
> I assume there will be some error with the bulk transfers, or just no Bi
> buffers at all, or something completely different. Let's see.
>
>
>
> Bjørn
>
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