Steve Strobel wrote: > At 10:03 AM 9/19/2007, Clemens Ladisch wrote: > >Steve Strobel wrote: > > > At 12:46 AM 9/19/2007, Clemens Ladisch wrote: > > > > or did you create a card-specific .conf file for your controller? > > > > > > Not intentionally, but there might be one left over from the AD1836 > > > driver I started with (I have just been modifying that driver, > > > planning to rename it after I get it working). Where would I look > > > for such a file? > > > >In /usr/share/alsa/cards/, with the driver name. > > I don't have a file there; that directory doesn't even exist: > Should I have a configuration file in one of those places? If I > don't, where do the default values come from? Well, there is an alsa.conf somewhere, otherwise the utils wouldn't run. > >Does it work when running aplay with the parameter "-D plughw"? > > No. It searches through more rules, but still says, "Sample format > non available". I put a log of the console output with and without > "-D plughw" at <http://link-comm.com/temp/aplay-log.txt> to save > bandwidth. Now it says that access RW_INTERLEAVED doesn't work. I'd really like to see the source code of the driver, especially the snd_pcm_hardware structure. > One thing I hadn't noticed before is the message: > > ALSA lib ../../../src/pcm/pcm_params.c:2152:(snd_pcm_hw_refine_slave) Slave PCM not usable > refine done - result = -22 > > Does a result code of -22 mean anything significant? Nothing that hasn't been already been told in the error message. -EINVAL is expected in this case. > You wrote in an earlier message:> > snd_pcm_hw_refine() > > > ACCESS = 00000000ffffffffffffffff -> 0000000000000008 > > > FORMAT = 0000000000000400 -> 0000000000000000 > > > > aplay tries to set S32_LE, but the driver doesn't accept it. > > I think I understand how the driver uses the snd_pcm_hardware_t > structure to tell ALSA what it supports, but I don't understand how > ALSA tries to set things in return. I am surprised that it would try > to set it to a data type that the driver never said it could > support. A configuration file can force a specific sample format. Usually, only dmix does that. Regards, Clemens _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
