yocto raspberry pi 3 MC7455: Transaction timed out

[Jesus Palomo]

Hello All!

I build my own image using yocto to Raspberry PI 3B and I'm using the
MC7455 Module, but when I try to execute the QMI commands using qmicli the
response is a "error: couldn't get service version info: Transaction timed
out", I'm not using another process or executing another qmicli, I added
some information regarding my environment. It would be great to
receive help because I'm blocked with this. Thank you very much!

By the way, the AT commands work great.

root at raspberrypi3:~# qmicli --version

qmicli 1.12.6
Copyright (C) 2015 Aleksander Morgado
License GPLv2+: GNU GPL version 2 or later <
http://gnu.org/licenses/gpl-2.0.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

root at raspberrypi3:~# qmicli -d /dev/cdc-wdm0 --get-service-version-info
error: couldn't get service version info: Transaction timed out

root at raspberrypi3:~# uname -a
Linux raspberrypi3 4.1.21 #1 SMP Sat Nov 14 11:28:46 CST 2020 armv7l
GNU/Linux

root at raspberrypi3:~# lsmod
Module                  Size  Used by
qcserial                4783  0
usb_wwan                4799  1 qcserial
qmi_wwan               11209  0
cdc_wdm                 9294  1 qmi_wwan
usbserial              21906  2 qcserial,usb_wwan
brcmfmac              180669  0
brcmutil                5737  1 brcmfmac
cfg80211              418667  1 brcmfmac
rfkill                 17189  2 cfg80211
bcm2835_gpiomem         2852  0
bcm2835_rng             1763  0
uio_pdrv_genirq         2944  0
uio                     8032  1 uio_pdrv_genirq
sch_fq_codel            7889  1
ipv6                  344560  18

root at raspberrypi3:~# dmesg | grep -i usb
[   13.445809] usb 1-1.5: New USB device found, idVendor=1199,
idProduct=9071
[   13.452881] usb 1-1.5: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[   13.487632] usb 1-1.5: Product: Sierra Wireless MC7455 Qualcomm�®
Snapdragon��™ X7 LTE-A
[   13.487646] usb 1-1.5: Manufacturer: Sierra Wireless, Incorporated
[   13.487653] usb 1-1.5: SerialNumber: LQ63120668041007
[   14.646834] usbcore: registered new interface driver cdc_wdm
[   14.653420] usbcore: registered new interface driver usbserial
[   14.660391] usbcore: registered new interface driver usbserial_generic
[   14.667559] usbserial: USB Serial support registered for generic
[   14.677186] qmi_wwan 1-1.5:1.8: cdc-wdm0: USB WDM device
[   14.684965] qmi_wwan 1-1.5:1.8 wwan0: register 'qmi_wwan' at
usb-3f980000.usb-1.5, WWAN/QMI device, b2:a3:aa:e1:11:e0
[   14.702871] qmi_wwan 1-1.5:1.10: cdc-wdm1: USB WDM device
[   14.711404] usbcore: registered new interface driver qcserial
[   14.713614] qmi_wwan 1-1.5:1.10 wwan1: register 'qmi_wwan' at
usb-3f980000.usb-1.5, WWAN/QMI device, b2:a3:aa:e1:11:e0
[   14.714330] usbcore: registered new interface driver qmi_wwan
[   14.735537] usbserial: USB Serial support registered for Qualcomm USB
modem
[   14.743685] qcserial 1-1.5:1.0: Qualcomm USB modem converter detected
[   14.751634] usb 1-1.5: Qualcomm USB modem converter now attached to
ttyUSB0
[   14.759700] qcserial 1-1.5:1.2: Qualcomm USB modem converter detected
[   14.767337] usb 1-1.5: Qualcomm USB modem converter now attached to
ttyUSB1
[   14.775288] qcserial 1-1.5:1.3: Qualcomm USB modem converter detected
[   14.782892] usb 1-1.5: Qualcomm USB modem converter now attached to
ttyUSB2

root at raspberrypi3:~# ps
  116 root     11224 S    /lib/systemd/systemd-udevd
  136 systemd- 12688 S    /lib/systemd/systemd-timesyncd
  139 root         0 SW<  [cfg80211]
  148 messageb  4376 S    /usr/bin/dbus-daemon --system --address=systemd:
--nofork --nopidfile --systemd-activation
  149 root      2720 S    /sbin/klogd -n
  150 root      2956 S    -sh
  151 root      1956 S    /sbin/agetty --noclear tty1 linux
  152 root      2804 S    /lib/systemd/systemd-logind
  153 root      2784 S    /sbin/syslogd -n -C
  158 root         0 SW   [kworker/1:3]
  192 root         0 SW   [kworker/0:0]
  210 root         0 SW   [kworker/3:0]
  211 root      2960 R    ps

root at raspberrypi3:~# microcom /dev/ttyUSB2
at+gmm
MC7455
at+gmr
SWI9X30C_02.08.02.00 r5428 CARMD-EV-FRMWR2 2016/01/06 20:38:53

-- 

*Embedded Developer*
*Palomo, Jesus*
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/libqmi-devel/attachments/20201114/e9285bfb/attachment.htm>