New subject: [linux-audio-dev] Developing and audio driver

10 Mar 2005

--- james(a)dis-dot-dat.net wrote:
...
  On Thu, 10 Mar, 2005 at 07:42PM -0500, Dave
 Robillard spake thus:
  On Wed, 2005-09-03 at 23:13 -0800, fred doh
wrote:
 > Hi,
 > 
 > I need to develop an audio driver (OSS on kernel  2.4)
  > for a new hardware. I didn't find any
resource
 > explaining how to do that, besides looking at  the
  > sources of other drivers. Could someone
direct  me to
 > > an appropriate resource? 
...
  No offence meant, but from your questions, you have
 less of a clue
 than I do, and I wouldn't fancy writing a driver
 from scratch.

 Are you sure you're not biting off a little too much
 here?

 On the othe hand, even if you give up half way
 through, you'll
 probably have learned a hell of a lot.

 But, as Dave says below, why?  OSS?  2.4?  Are there
 good reasons for
 this?
  Why on earth would you write an OSS driver for
2.4  at this point in
 > time?
 >  
Writing for OSS is a constraint, not a choice. I'm not
starting from scratch there is some older driver that
I have to port, and it's been written for OSS. Later
if there is time for it I will make the ALSA
conversion.

I've read docs about doing kernel drivers so my
questions are not general about drivers, but really
directed at audio drivers. I didn't find any resource
about it. The OSS doc seems to be directed to the user
of the API and not for the driver developer.
For example, which function from the file operations
structure have to be implemented and for what purpose
in the case of audio?

-fred

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Re: [linux-audio-dev] Developing and audio driver