On Fri, May 14, 2010 at 04:17:27PM +0800, Takashi Iwai wrote: > At Fri, 14 May 2010 11:28:28 +0800, > Wu Fengguang wrote: > > > > When the static minor numbers collide because of too many devices, > > fall back to the reserved minor numbers 2 and 3. > > > > This for example will allow Intel HDMI audio driver to create three PCM > > devices (index 3, 7, 8; the minor number of the last index will > > otherwise collide with the first record device). > > > > The other option is to force enable CONFIG_SND_DYNAMIC_MINORS. > > > > Signed-off-by: Wu Fengguang <fengguang.wu@xxxxxxxxx> > > Well, frankly, I don't see a big merit of doing this. > > Most (all?) 2.6-based distros are using udev, thus > CONFIG_SND_DYNAMIC_MINORS should be used there. The rest is for old > distros or for some limited systems like embedded devices, and they > won't need so much PCM devices. > > Even if we do this, it doesn't make sense unless the user-space side > creates the corresponding device node. I was afraid of this case: an embedded system with G45 HDMI codec. This codec only has 1 PCM playback device, however the driver still requires enabling CONFIG_SND_DYNAMIC_MINORS in order to support more capable HDMI codecs. Thanks, Fengguang _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
