[alsa-devel] Osprey 440 almost supported!!! Need X9221 i2c support!

Nathan Allen Stratton nathan at robotics.net
Fri Jun 22 17:10:02 CEST 2007

On Fri, 22 Jun 2007, Clemens Ladisch wrote:

> Nathan Allen Stratton wrote:
> > [...]
> > So the issue now is that the audio is WAY to high so it is very distorted.
> > The audio is controlled via X9221A chips on the i2c bus at 0x50, there are
> > not drivers for X9221 so I can't lower the audio levels.
> There is a datasheet for these chips, so writing some code for this
> should be easy.  However, the I2C controller is not managed by the
> snd-bt87x driver but by the bttv driver.

Old linux drivers (no longer compile on suse, or fedora) should help:


Now that we know the GPIO settings, how hard is it to add i2c support in


More information about the Alsa-devel mailing list