EG91 LTE modem
USB ID 2c7c:0191 · Quectel Wireless Solutions Co., Ltd.
| Vendor | Quectel Wireless Solutions Co., Ltd. |
|---|---|
| Vendor ID | 2c7c |
| Device ID | 0191 |
| Windows hardware ID | USB\VID_2C7C&PID_0191 |
| Linux modalias | usb:v2C7Cp0191 |
| Linux driver | option and qmi_wwan |
Frequently asked questions
Which device has USB ID 2c7c:0191?
USB ID 2c7c:0191 is “EG91 LTE modem” made by Quectel Wireless Solutions Co., Ltd. (vendor ID 2c7c, device ID 0191).
Which Linux driver supports EG91 LTE modem?
In Linux kernel 6.12 the device is matched by the drivers option and qmi_wwan (source under drivers/net/usb and drivers/usb/serial). The right driver is normally loaded automatically when the device is detected.
How do I check whether EG91 LTE modem is in my computer?
On Linux, lsusb -d 2c7c:0191 shows the device if it is present. On Windows, open Device Manager, then Properties → Details → Hardware Ids; it appears as USB\VID_2C7C&PID_0191.
How do I see which driver is currently in use?
lsusb -t prints the device tree with the bound driver (Driver=…) for each interface.