Hello list! I am working on a custom embedded ARM based-board (iMX28) with a SGTL5000 audio codec (correctly seen by kernel 3.12.2) but the lineout lines (LINEOUT_L and LINEOUT_R) are inputs for a Texas Instruments' Volume Controller named LM48100Q i2c-bus based.

I would like to know if there are any chances to add a ALSA Driver for this VOLUME CONTROLLER. I am looking at sounds/i2c/other/pt2258.c driver and it looks very similar to lm48100. Actually this lm48100 has 5 registers but only 3 are useful to me: MODE CONTROL (how many inputs it uses (1 or 2) or POWER ON/OFF), and one register for INPUT1 VOLUME SETTING and another one for INPUT2 VOLUME SETTING.

Or I will be forced to use this in a userspace driver accessing the i2c, but with no integration in any linux-based audio mixer alsa tool.

Can you help me on this?

Regards,