MC7455 not working
Steven Pease
spease at suitabletech.com
Wed Mar 23 10:11:36 UTC 2016
To explicitly answer your earlier questions:
"You're missing here the cdc-wdm ports to talk QMI. Is this a
self-compiled kernel? Is the cdc-wdm driver enabled in the build?"
My original attempt was using the current Arch kernel, 4.4.5, from the
stock package. I checked /proc/config.gz and the WDM option was listed
as a module, the CDC options were also compiled in.
I did not check the /proc/config.gz with kernel-mainline 4.5 to see if
any config options had changed that might explain the increased
functionality in 4.5.
- Steven
On Wed, Mar 23, 2016 at 3:06 AM, Steven Pease <spease at suitabletech.com> wrote:
> Hi Aleksander,
> I used Arch Build System to grab the existing package builds of libqmi and
> ModemManager and built 1.14 and 1.5.990 respectively from
> https://www.freedesktop.org/software/. I still got similar output using
> kernel 4.4.5.
>
> I then tried installing linux-mainline which on Arch is kernel 4.5. After
> running simple-connect, I noticed "mmcli -b 0" indicated the wwp0s29f7u5i8
> interface and an IPv4 configuration of dhcp with IP address, gateway, etc.
>
> I could not get a dhcp client to work, but manually setting an address with
> "ip addr" and doing a ping through the interface with "ping -i wwp0s29f7u5i8
> 8.8.8.8" did yield results. Is this the correct behavior?
>
> From googling around I found this:
> https://mail.gnome.org/archives/networkmanager-list/2015-December/msg00042.html
>
> I guess this means that MC7455 will only work in kernel 4.5 due to better
> raw-ip support?
>
> Thanks.
>
> - Steven
>
> On Tue, Mar 22, 2016 at 12:57 AM, Aleksander Morgado
> <aleksander at aleksander.es> wrote:
>>
>> Hey Steven,
>>
>>
>> On Tue, Mar 22, 2016 at 6:44 AM, Steven Pease <spease at suitabletech.com>
>> wrote:
>> > Hi,
>> > I'm trying to get the MC7455 working with kernel 4.4.5 or 4.4.6. My
>> > workstation is running Arch which is using kernel 4.4.5 and
>> > ModemManager 1.4.12. In the following, the modem is the only modem on
>> > the system at index 1 since this is the second try following a reboot.
>> >
>> > I'm trying to get an internet connect (IPV4) going over the modem. The
>> > IMEI and Phone # appear to be correct although I've X'd them out.
>>
>> You won't be able to get a proper connection unless you use
>> ModemManager from git master or the new 1.6-rc1 tagged last week. This
>> is because the MC7455 requires the "raw-ip" only setup.
>>
>> BUT not having that newer MM isn't the only issue. See below.
>>
>> >
>> > $ mmcli -m 1
>> > /org/freedesktop/ModemManager1/Modem/1 (device id
>> > '3abb9e13c07a07a53a0e4f5881b52cd195f21502')
>> > -------------------------
>> > Hardware | manufacturer: 'Sierra Wireless, Incorporated'
>> > | model: 'MC7455'
>> > | revision: 'SWI9X30C_02.04.07.00 r4823
>> > CARMD-EV-FRMWR2 2015/11/04 06:51:37'
>> > | supported: 'gsm-umts, lte'
>> > | current: 'gsm-umts, lte'
>> > | equipment id: 'XXXXXXXXXXXXXXX'
>> > -------------------------
>> > System | device:
>> > '/sys/devices/pci0000:00/0000:00:1d.7/usb2/2-5'
>> > | drivers: 'qmi_wwan, qcserial'
>> > | plugin: 'Gobi'
>> > | primary port: 'ttyUSB2'
>> > | ports: 'ttyUSB0 (qcdm), ttyUSB2 (at),
>> > wwp0s29f7u5i10 (net), wwp0s29f7u5i8 (net)'
>>
>> You're missing here the cdc-wdm ports to talk QMI. Is this a
>> self-compiled kernel? Is the cdc-wdm driver enabled in the build?
>>
>>
>> > -------------------------
>> > Numbers | own : 'XXXXXXXXXXX'
>> > -------------------------
>> > Status | lock: 'none'
>> > | unlock retries: 'unknown'
>> > | state: 'disabled'
>> > | power state: 'on'
>> > | access tech: 'unknown'
>> > | signal quality: '0' (cached)
>> > -------------------------
>> > Modes | supported: 'allowed: 2g, 3g, 4g; preferred: none'
>> > | current: 'allowed: 2g, 3g, 4g; preferred: none'
>> > -------------------------
>> > Bands | supported: 'unknown'
>> > | current: 'unknown'
>> > -------------------------
>> > IP | supported: 'ipv4, ipv6, ipv4v6'
>> > -------------------------
>> > 3GPP | imei: 'XXXXXXXXXXXXXXX'
>> > | enabled locks: 'none'
>> > | operator id: 'unknown'
>> > | operator name: 'unknown'
>> > | subscription: 'unknown'
>> > | registration: 'unknown'
>> > -------------------------
>> > SIM | path: '/org/freedesktop/ModemManager1/SIM/1'
>> >
>> > -------------------------
>> > Bearers | paths: 'none'
>> >
>> > $ mmcli -m 1 --simple-connect="apn=broadband,ip-type=ipv4v6" --verbose
>> > --timeout=1500
>> > [21 Mar 2016, 22:31:19] [Debug] Forcing request to be run asynchronously
>> > [21 Mar 2016, 22:31:19] [Debug] Assuming '1' is the modem index
>> > [21 Mar 2016, 22:31:19] [Debug] ModemManager process found at ':1.31'
>> > [21 Mar 2016, 22:31:19] [Debug] Modem found at
>> > '/org/freedesktop/ModemManager1/Modem/1'
>> >
>> > [21 Mar 2016, 22:31:19] [Debug] Asynchronously connecting the modem...
>> > successfully connected the modem
>> >
>> > $ mmcli -b 1
>> > Bearer '/org/freedesktop/ModemManager1/Bearer/1'
>> > -------------------------
>> > Status | connected: 'yes'
>> > | suspended: 'no'
>> > | interface: 'ttyUSB2'
>> > | IP timeout: '20'
>>
>> This should have listed one of the WWANs, but it's not there because
>> the QMI implementation isn't managing the modem, due to the lack of
>> cdc-wdm port.
>>
>> > -------------------------
>> > Properties | apn: 'broadband'
>> > | roaming: 'allowed'
>> > | IP type: 'ipv4v6'
>> > | user: 'none'
>> > | password: 'none'
>> > | number: 'none'
>> > | Rm protocol: 'unknown'
>> > -------------------------
>> > IPv4 configuration | method: 'ppp'
>> > | address: 'unknown'
>> > | prefix: '0'
>> > | gateway: 'unknown'
>> > | DNS: none
>> > -------------------------
>> > IPv6 configuration | method: 'ppp'
>> > | address: 'unknown'
>> > | prefix: '0'
>> > | gateway: 'unknown'
>> > | DNS: none
>> >
>> > Trying to get a lease from either wwan interface fails:
>> >
>> > $ sudo dhcpcd wwp0s29f7u5i8
>> > wwp0s29f7u5i8: waiting for carrier
>> > wwp0s29f7u5i8: carrier acquired
>> > wwp0s29f7u5i8: adding address fe80::aa33:9c69:b4fa:2796
>> > DUID XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX
>> > wwp0s29f7u5i8: IAID df:90:dc:bc
>> > wwp0s29f7u5i8: soliciting a DHCP lease
>> > wwp0s29f7u5i8: soliciting an IPv6 router
>> > wwp0s29f7u5i8: no IPv6 Routers available
>> > timed out
>> > dhcpcd exited
>> >
>> > $ sudo dhcpcd wwp0s29f7u5i10
>> > wwp0s29f7u5i10: waiting for carrier
>> > wwp0s29f7u5i10: carrier acquired
>> > wwp0s29f7u5i10: adding address fe80::f614:fdf:279f:ae6c
>> > DUID XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX
>> > wwp0s29f7u5i10: IAID 67:d6:ab:9b
>> > wwp0s29f7u5i10: soliciting a DHCP lease
>> > wwp0s29f7u5i10: soliciting an IPv6 router
>> > wwp0s29f7u5i10: no IPv6 Routers available
>> > timed out
>> > dhcpcd exited
>> >
>>
>> No, you cannot do this if the bearer info doesn't list a WWAN.
>>
>> > I'm guessing I need to get MM to start the bearer on wwp0s29f7u5i10
>> > instead of ttyUSB2, but so far I haven't figured out how to do this.
>>
>> This should be automatic, only if MM grabbed all the required ports.
>>
>> --
>> Aleksander
>> https://aleksander.es
>
>
>
>
> --
> - Steven
--
- Steven
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