[alsa-devel] Huawei K3715 UMTS stick and alsa

Clemens Ladisch clemens at ladisch.de
Tue Jul 28 09:36:30 CEST 2009

Artem Makhutov wrote:
> i am wondering if it is possible to write a quirk in usbquirks.h for a Huawei
> K3715 UMTS stick to make the audio interfaces available in linux.

What kind of audio does this UMTS stick have?

> This two interfaces are used for audio (I have sniffed in Windows):
> bEndpointAddress     0x83  EP 3 IN
> bEndpointAddress     0x02  EP 2 OUT

The lsusb output shows that these are bulk endpoints.  The snd-usb-audio
driver is designed for isochronous endpoints; a simple quirk would not

> The payload of this interfaces is 320 bytes.

How many bytes per second?

Best regards,

More information about the Alsa-devel mailing list