[PATCH] qmi-firmware-update: support USB3->USB2 mode changes during upgrade

Paul Gildea gildeap at tcd.ie
Tue Jan 23 16:16:49 UTC 2018


Looking through the directory, there is a peer symlink called *peer* inside
the symlink *port@ *

[root]# ls -al port
lrwxrwxrwx    1 root     root             0 Jan 23 16:58 port ->
../3-0:1.0/usb3-port3/

[root]# ls -al port/peer
lrwxrwxrwx    1 root     root             0 Jan 23 17:03 port/peer ->
../../../usb4/4-0:1.0/usb4-port3/

--
Paul



On 23 January 2018 at 15:17, Paul Gildea <gildeap at tcd.ie> wrote:

> Hi Bjørn,
>
> Checked that now and no peer file exists in /sys/bus/usb/devices/2-2/. I
> don't know what a peer port is so need to look into that.
>
>
> 2-2:1.0/             bMaxPacketSize0      devpath              quirks
>
> 2-2:1.10/            bMaxPower            driver@              removable
>
> 2-2:1.2/             bNumConfigurations   ep_00/               remove
>
> 2-2:1.3/             bNumInterfaces       idProduct            serial
>
> 2-2:1.8/             bcdDevice            idVendor             speed
>
> authorized           bmAttributes         ltm_capable          subsystem@
>
> avoid_reset_quirk    busnum               manufacturer         uevent
>
> bConfigurationValue  configuration        maxchild             urbnum
>
> bDeviceClass         descriptors          port@                version
>
> bDeviceProtocol      dev                  power/
>
> bDeviceSubClass      devnum               product
>
>
>
> --
> Paul
>
> On 23 January 2018 at 15:02, Bjørn Mork <bjorn at mork.no> wrote:
>
>> Ouch.  Do you have a
>>
>>  /sys/bus/usb/devices/2-2/port/peer
>>
>> symlink when the modem is running normally?
>>
>>
>>
>> Bjørn
>>
>> Paul Gildea <gildeap at tcd.ie> writes:
>>
>> > Hi Aleksander,
>> >
>> > Sorry about the delay being able to test this. I saw you applied Bjørn's
>> > patch to 1.18.2 and 1.20.0. I tested 1.18.2 now and unfortunately it
>> didn't
>> > work. Same result as before with the applicationnot recognising the USB2
>> > port, rebooting and recognising USB3 port.
>> >
>> > [23 Jan 2018, 15:34:09] [Debug] [qfu,utils] operating mode set
>> >> successfully...
>> >> [23 Jan 2018, 15:34:09] [Debug] [qfu-updater] reset requested
>> >> successfully...
>> >> [23 Jan 2018, 15:34:09] [Debug] [qfu-updater] cleaning up QMI device...
>> >> [23 Jan 2018, 15:34:09] [Debug] [/dev/cdc-wdm6] Releasing 'dms' client
>> >> with flags 'none'...
>> >> [23 Jan 2018, 15:34:09] [Debug] [/dev/cdc-wdm6] Unregistered 'dms'
>> client
>> >> with ID '2'
>> >> rebooting in download mode...
>> >> [23 Jan 2018, 15:34:09] [Debug] [qfu-updater] reset requested, now
>> waiting
>> >> for TTY device...
>> >> [23 Jan 2018, 15:34:27] [Debug] [qfu-udev] event: remove ttyUSB10
>> >> [23 Jan 2018, 15:34:27] [Debug] [qfu-udev] event: remove ttyUSB11
>> >> [23 Jan 2018, 15:34:27] [Debug] [qfu-udev] event: remove 2-2:1.0
>> >> [23 Jan 2018, 15:34:27] [Debug] [qfu-udev] event: remove 2-2:1.2
>> >> [23 Jan 2018, 15:34:27] [Debug] [qfu-udev] event: remove ttyUSB12
>> >> [23 Jan 2018, 15:34:27] [Debug] [qfu-udev] event: remove 2-2:1.3
>> >> [23 Jan 2018, 15:34:27] [Debug] [qfu-udev] event: remove wwan6
>> >> [23 Jan 2018, 15:34:27] [Debug] [qfu-udev] event: remove cdc-wdm6
>> >> [23 Jan 2018, 15:34:27] [Debug] [qfu-udev] event: remove 2-2:1.8
>> >> [23 Jan 2018, 15:34:27] [Debug] [qfu-udev] event: remove wwan7
>> >> [23 Jan 2018, 15:34:27] [Debug] [qfu-udev] event: remove cdc-wdm7
>> >> [23 Jan 2018, 15:34:27] [Debug] [qfu-udev] event: remove 2-2:1.10
>> >> [23 Jan 2018, 15:34:27] [Debug] [qfu-udev] event: remove 2-2
>> >> [23 Jan 2018, 15:34:28] [Debug] [qfu-udev] event: add 1-1
>> >> [23 Jan 2018, 15:34:28] [Debug] [qfu-udev] event: add 1-1:1.0
>> >>
>> >> *[23 Jan 2018, 15:34:28] [Debug] [qfu-udev] event: add ttyUSB10[23 Jan
>> >> 2018, 15:34:58] [Debug] [qfu-udev] event: remove ttyUSB10*
>> >> [23 Jan 2018, 15:34:58] [Debug] [qfu-udev] event: remove 1-1:1.0
>> >> [23 Jan 2018, 15:34:58] [Debug] [qfu-udev] event: remove 1-1
>> >> [23 Jan 2018, 15:35:07] [Debug] [qfu-udev] event: add 2-2
>> >> [23 Jan 2018, 15:35:07] [Debug] [qfu-udev] event: add 2-2:1.3
>> >> [23 Jan 2018, 15:35:07] [Debug] [qfu-udev] event: add 2-2:1.8
>> >> [23 Jan 2018, 15:35:07] [Debug] [qfu-udev] event: add 2-2:1.2
>> >> [23 Jan 2018, 15:35:07] [Debug] [qfu-udev] event: add cdc-wdm6
>> >> [23 Jan 2018, 15:35:07] [Debug] [qfu-udev] event: add 2-2:1.0
>> >> [23 Jan 2018, 15:35:07] [Debug] [qfu-udev] event: add 2-2:1.10
>> >> [23 Jan 2018, 15:35:07] [Debug] [qfu-udev] event: add cdc-wdm7
>> >> [23 Jan 2018, 15:35:07] [Debug] [qfu-udev] event: add ttyUSB12
>> >> [23 Jan 2018, 15:35:07] [Debug] [qfu-udev] waiting device (tty)
>> matched:
>> >> ttyUSB12
>> >> [23 Jan 2018, 15:35:07] [Debug] [qfu-updater] TTY device found:
>> >> /dev/ttyUSB12
>> >> download mode detected
>> >> [23 Jan 2018, 15:35:07] [Debug] [qfu-qdl-device] opening TTY:
>> /dev/ttyUSB12
>> >> [23 Jan 2018, 15:35:07] [Debug] [qfu-qdl-device] setting terminal in
>> raw
>> >> mode...
>> >> [23 Jan 2018, 15:35:07] [Debug] [qfu,dload-message] sent sdp:
>> >> [23 Jan 2018, 15:35:07] [Debug] [qfu-qdl-device] >> 70:00:00 [3,
>> unframed]
>> >> [23 Jan 2018, 15:35:07] [Debug] [qfu-qdl-device] >>
>> 7E:70:00:00:14:46:7E
>> >> [7]
>> >> error: error creating device: timed out waiting for the response
>> >> [23 Jan 2018, 15:35:15] [Debug] [qfu-udev] event: add ttyUSB10
>> >> [23 Jan 2018, 15:35:15] [Debug] [qfu-udev] event: add wwan6
>> >> [23 Jan 2018, 15:35:15] [Debug] [qfu-udev] event: add ttyUSB11
>> >> [23 Jan 2018, 15:35:15] [Debug] [qfu-udev] event: add wwan7
>> >> [root at Desk /]#
>> >
>> >
>> >
>> > [  794.874702] usb 2-2: USB disconnect, device number 8
>> >> [  794.874986] qcserial ttyUSB10: Qualcomm USB modem converter now
>> >> disconnected from ttyUSB10
>> >> [  794.874999] qcserial 2-2:1.0: device disconnected
>> >> [  794.875190] qcserial ttyUSB11: Qualcomm USB modem converter now
>> >> disconnected from ttyUSB11
>> >> [  794.875203] qcserial 2-2:1.2: device disconnected
>> >> [  794.875571] qcserial ttyUSB12: Qualcomm USB modem converter now
>> >> disconnected from ttyUSB12
>> >> [  794.875581] qcserial 2-2:1.3: device disconnected
>> >> [  794.875652] qmi_wwan 2-2:1.8 wwan6: unregister 'qmi_wwan'
>> >> usb-0000:00:14.0-2, WWAN/QMI device
>> >> [  794.882022] qmi_wwan 2-2:1.10 wwan7: unregister 'qmi_wwan'
>> >> usb-0000:00:14.0-2, WWAN/QMI device
>> >> [  795.579657] usb 1-1: new high-speed USB device number 7 using
>> xhci_hcd
>> >> [  795.744560] usb 1-1: New USB device found, idVendor=1199,
>> idProduct=9070
>> >> [  795.744564] usb 1-1: New USB device strings: Mfr=1, Product=2,
>> >> SerialNumber=3
>> >> [  795.744566] usb 1-1: Product: Sierra Wireless MC7455 Qualcomm
>> >> [  795.744568] usb 1-1: Manufacturer: Sierra Wireless, Incorporated
>> >> [  795.744570] usb 1-1: SerialNumber: LQ71474252031020
>> >> [  795.745059] qcserial 1-1:1.0: Qualcomm USB modem converter detected
>> >>
>> >>
>> >> *[  795.745136] usb 1-1: Qualcomm USB modem converter now attached to
>> >> ttyUSB10[  825.374390] usb 1-1: USB disconnect, device number 7[
>> >>  825.374668] qcserial ttyUSB10: Qualcomm USB modem converter now
>> >> disconnected from ttyUSB10*
>> >> [  825.374680] qcserial 1-1:1.0: device disconnected
>> >
>> >
>> >
>> > Regards,
>> >
>> > --
>> > Paul
>> >
>> > On 17 January 2018 at 16:59, Paul Gildea <gildeap at tcd.ie> wrote:
>> >
>> >> Hi Aleksander,
>> >>
>> >> Sure thing, I'll get back to you with the results when I can.
>> >>
>> >> Looks good! Thanks guys,
>> >>
>> >> --
>> >> Paul
>> >>
>> >> On 17 January 2018 at 16:45, Aleksander Morgado <
>> aleksander at aleksander.es>
>> >> wrote:
>> >>
>> >>> Hey Paul,
>> >>>
>> >>> On Wed, Jan 17, 2018 at 3:02 PM, Bjørn Mork <bjorn at mork.no> wrote:
>> >>> > Modems operating in USB3 SuperSpeed mode may change to
>> >>> > USB2 HighSpeed mode while in boot-and-hold. This changes
>> >>> > the USB port name, causing device matching failure.
>> >>> >
>> >>> > Fix by accepting matches on both the original USB(3) port and
>> >>> > the "peer" USB(2) port.
>> >>> >
>> >>>
>> >>> Any chance you can give this patch a try?
>> >>>
>> >>> --
>> >>> Aleksander
>> >>> https://aleksander.es
>> >>>
>> >>
>> >>
>>
>
>
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