From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Fix build errors: driver uses snd_pcm*() interfaces, so select SND_PCM. drivers/built-in.o: In function `audio_rx_completion': sound.c:(.text+0x3cd376): undefined reference to `snd_pcm_period_elapsed' drivers/built-in.o: In function `pcm_prepare': sound.c:(.text+0x3cd3b0): undefined reference to `snd_pcm_format_physical_width' sound.c:(.text+0x3cd3ce): undefined reference to `snd_pcm_format_big_endian' sound.c:(.text+0x3cd42c): undefined reference to `snd_pcm_format_big_endian' drivers/built-in.o: In function `pcm_hw_free': sound.c:(.text+0x3cd50a): undefined reference to `snd_pcm_lib_free_vmalloc_buffer' drivers/built-in.o: In function `pcm_hw_params': sound.c:(.text+0x3cd54c): undefined reference to `_snd_pcm_lib_alloc_vmalloc_buffer' drivers/built-in.o: In function `playback_thread': sound.c:(.text+0x3cd6a0): undefined reference to `snd_pcm_period_elapsed' drivers/built-in.o: In function `audio_probe_channel': sound.c:(.text+0x3cdc0b): undefined reference to `snd_pcm_new' sound.c:(.text+0x3cdc2b): undefined reference to `snd_pcm_set_ops' drivers/built-in.o:(.data+0x952d0): undefined reference to `snd_pcm_lib_ioctl' drivers/built-in.o:(.data+0x95318): undefined reference to `snd_pcm_lib_get_vmalloc_page' Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Cc: Christian Gromm <christian.gromm@xxxxxxxxxxxxx> --- drivers/staging/most/aim-sound/Kconfig | 1 + 1 file changed, 1 insertion(+) --- linux-next-20150803.orig/drivers/staging/most/aim-sound/Kconfig +++ linux-next-20150803/drivers/staging/most/aim-sound/Kconfig @@ -5,6 +5,7 @@ config AIM_SOUND tristate "ALSA AIM" depends on SND + select SND_PCM ---help--- Say Y here if you want to commumicate via ALSA/sound devices. _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel