Since I got like, $cat /proc/asound/devices 2: : timer 3: : sequencer 4: [ 0- 0]: digital audio playback 5: [ 0] : control I created nodes according to this like, $ls -l /dev/snd/ total 0 crw-r--r-- 1 root root 116, 5 Jun 14 18:58 controlC0 crw-r--r-- 1 root root 116, 24 Jun 14 18:55 pcmC0D0c crw-r--r-- 1 root root 116, 4 Jun 14 18:59 pcmC0D0p crw-r--r-- 1 root root 116, 2 Jun 14 18:59 timer Now when I played aplay, $aplay alarm.wav Playing WAVE '/home/alarm.wav' : Unsigned 8 bit, Rate 22050 Hz, Mono <3>Bad pte = 5fc2d05f, process = aplay, vm_flags = 800fb, vaddr = 4001c000 Unable to handle kernel NULL pointer dereference at virtual address 00000003 pgd = c2a70000 [00000003] *pgd=22a30031, *pte=00000000, *ppte=00000000 Internal error: Oops: 1 [#2] Modules linked in: CPU: 0 PC is at snd_pcm_mmap_data_nopage+0xc4/0xe8 LR is at 0x4001d000 pc : [<c01bf854>] lr : [<4001d000>] Not tainted sp : c2a4fe6c ip : ffffffff fp : c2a4fe80 r10: 4001d000 r9 : c002bba0 r8 : c2a4e000 r7 : c2e364c4 r6 : 00000000 r5 : c2a4fea0 r4 : c2a7ac00 r3 : 00000093 r2 : 00000013 r1 : 00002000 r0 : c0afa5c0 Flags: nzcv IRQs off FIQs on Mode SVC_32 Segment user Control: 5317F Table: 22A70000 DAC: 00000015 Process aplay (pid: 912, stack limit = 0xc2a4e250) Stack: (0xc2a4fe6c to 0xc2a50000) fe60: 00000000 c29b3544 c2a4fecc c2a4fe84 c0079c58 fe80: c01bf7a0 c2a71000 c002bbe0 5fc2d05f 00000000 00000000 c2a71000 00000000 fea0: 00000002 ffffffeb c03d0040 c2e364c4 c002bba0 c002bbd4 c2a4ffb0 4001d000 fec0: c2a4ff04 c2a4fed0 c003b3a4 c0079b2c 000227d0 00000000 00000017 ffffffff fee0: c02cd04c 00000017 c2a4ffb0 4001d000 4032e000 400cb5fc c2a4ffac c2a4ff08 ff00: c003b5c0 c003b2dc c2a4ff14 c2faddc0 ffffffe7 c0844123 00000000 c0035ec4 ff20: 400cb5fc c2a4ff40 c2a4ff34 c01c15b8 c01c10e4 c2a4ff5c c2a4ff44 c00943d0 ff40: c01c1594 c2faddc0 000227d0 00000004 c2a4ff84 c2a4ff60 c00946ac c00943a4 ff60: 000003d8 00000000 c2faddc0 fffffff7 c0844123 00000036 c2a4ffa4 c2a4ff88 ff80: c009470c c0094428 00000000 ffffffff 4032e320 00000008 00000004 00000004 ffa0: 00000000 c2a4ffb0 c0035cc8 c003b594 00000000 4001d000 4032c000 ffffff00 ffc0: 00000400 4032e320 00000008 00000004 00000004 4032e000 400cb5fc 000004c8 ffe0: ffffff00 bebb29e0 ffffff00 4008ce20 20000010 ffffffff 4009e42c 4009e464 Backtrace: [<c01bf790>] (snd_pcm_mmap_data_nopage+0x0/0xe8) from [<c0079c58>] (__handle_mm_fault+0x13c/0x760) r5 = C29B3544 r4 = 00000000 [<c0079b1c>] (__handle_mm_fault+0x0/0x760) from [<c003b3a4>] (do_page_fault+0xd8/0x20c) [<c003b2cc>] (do_page_fault+0x0/0x20c) from [<c003b5c0>] (do_DataAbort+0x3c/0xa0) [<c003b584>] (do_DataAbort+0x0/0xa0) from [<c0035cc8>] (ret_from_exception+0x0/0x10) r8 = 00000004 r7 = 00000004 r6 = 00000008 r5 = 4032E320 r4 = FFFFFFFF Code: 1590c00c e10f2000 e3823080 e121f003 (e59c3004) Segmentation fault No sound ...:-(( Where I am doing wrong..?? On Thu, Sep 11, 2008 at 6:12 PM, Prithwee Narayan N S < prithweens@xxxxxxxxxxx> wrote: > Hi, > > > > Try the following nodes. > > > > # cat /proc/asound/devices > > 0: [ 0] : control > > 16: [ 0- 0]: digital audio playback > > 24: [ 0- 0]: digital audio capture > > 33: : timer > > > > / # ls -l /dev/snd/ > > crw-rw---- 1 0 101 116, 0 Jan 1 00:00 controlC0 > > crw-rw---- 1 0 101 116, 24 Jan 1 00:00 pcmC0D0c > > crw-rw---- 1 0 101 116, 16 Jan 1 00:00 pcmC0D0p > > crw-rw---- 1 0 101 116, 33 Jan 1 00:00 timer > > > > *aplay** -D hw:**0**,0 file.wav* or *aplay** -D plughw:0,0 file.wav*should play your WAV file provided you have the correct alsa.conf file. > > > > Regards, > > Prithwee Narayan. > > > > On Wed, Sep 10, 2008 at 6:16 PM, vasudha rao <vasudha.jrao@xxxxxxxxx> > wrote: > > > > > > Hi , > > > > > > I want to play and record audio file in my custom atmel 9263 board > > > running with linux(2.6.20). > > > when I tried to play aplay for a wave file, I got > > > > > > $aplay /home/alarm.wav > > > ALSA lib pcm.c:1707:(snd_pcm_open_noupdate) Unknown PCM default > > > aplay: main:446: audio open error: No such file or directory > > > > > > $aplay -l > > > aplay: device_list:187: no soundcards found... > > > > > > $cat /proc/asound/devices > > > 2: : timer > > > 3: : sequencer > > > 4: [ 0- 0]: digital audio playback > > > 5: [ 0] : control > > > > > > Can you tel me where I am doing wrong..?? > > > > > > Thanks in advance.. > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
