Reading Sierra Wireless MC7304 GPS data on serial port

Bepeho

11/2/22, 4:21 PM

on a Debian 10 OS, I've installed a MC7304 LTE PCI card I connect correctly the network.

the usb-devices command list it

T:  Bus=01 Lev=02 Prnt=05 Port=01 Cnt=01 Dev#=  7 Spd=480 MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=1199 ProdID=68c0 Rev=00.06
S:  Manufacturer=Sierra Wireless, Incorporated
S:  Product=MC7304
C:  #Ifs= 6 Cfg#= 1 Atr=e0 MxPwr=500mA
I:  If#=0x0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=qcserial
I:  If#=0xa Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
I:  If#=0xb Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
I:  If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=qcserial
I:  If#=0x3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=qcserial
I:  If#=0x8 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan

I was expecting to have the card associated with a /dev/ttyUSBn or /dev/ttySn device and be able to send AT commands.

But it is not happening.

Typing:

minicom -D /dev/ttyUSB[n]

displays its welcome message, but there's nothing going in nor out the card.

My user belongs to the dialout group.

My intend is to send the card AT commands to configure it and read GPS data in an NMEA stream while

I suppose there's a driver issue in my installation. Should I install specific drivers from sierrawireless ?

Thank you for your help

0 + 1

usb

gps

networking

drivers

guiverc

11/2/22, 10:31 PM

Please refer https://askubuntu.com/help/on-topic, Ubuntu and official *flavors* of Ubuntu (https://ubuntu.com/download/flavours) are on-topic on this site. The on-topic link provides alternate SE sites for non-Ubuntu OSes.

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Reading Sierra Wireless MC7304 GPS data on serial port

TH: การอ่านข้อมูล GPS Sierra Wireless MC7304 บนพอร์ตอนุกรม

RO: Citirea datelor GPS Sierra Wireless MC7304 pe portul serial

RU: Чтение GPS-данных Sierra Wireless MC7304 через последовательный порт

VI: Đọc dữ liệu GPS Sierra Wireless MC7304 trên cổng nối tiếp

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