On Thu, 28 Jan 2010, Wei Ni wrote:
Hi, Takashi When I develop hdmi audio driver on the GT21x, I found a bug in the had_intel.c In hda_codec.c, it has define "[HDA_PCM_TYPE_HDMI] = { 3, 7, 8, 9, -1 },", it support up to device 9 for HDMI. But in hda_intel.c, it only define AZX_MAX_PCMS as 8. So the GT21x have 4 hdmi codecs, when run azx_attach_pcm_stream(), it will show error "Invalid PCM device number 8", and "... number 9", and return "-EINVAL". We should change the AZX_MAX_PCMS to 10.
I'm afraid, but having more than 8 PCM devices might cause problems when CONFIG_SND_DYNAMIC_MINORS is not set. At least, this condition (#if SNDRV_PCM_DEVICES < 10) should be handled in the HDA driver.
Jaroslav
----- Jaroslav Kysela perex@perex.cz Linux Kernel Sound Maintainer ALSA Project, Red Hat, Inc.