On Thu, 15 Nov 2007, Takashi Iwai wrote:
Hi,
ALSA control elements have "indirect" flag, which is supposed to allow the indirect access via pointer. But, as far as I know, this feature has never been used nor implemented, and unsupported via 32/64bit compat layer.
So, I'd like to get rid of this now. The clean-up patch is below.
If you have objections, please let me know.
I have objection. This layer was designed to support large mixer matrixes like in the HDSPM driver (and if I remember correctly - implementation was started after discussion with authors of RME drviers). HDSPM driver uses hwdep interface now (probably because it was ported from the OSS code). I think that it would be worth to use standard ALSA control interface to track changes thus to finish indirect interface.
Which problems are with the 32/64 bit conversion layer? I suppose that it is possible to write an ioctl converters.
Jaroslav
----- Jaroslav Kysela perex@perex.cz Linux Kernel Sound Maintainer ALSA Project