Re: [alsa-devel] Help with SoC alsa.conf

I have some additional information that may help. As before, when I have:

pcm.!default { type hw card 0 } pcm.hw { type hw card 0 device 0 subdevice 0 } ctl.!default { type hw card 0 } ctl.hw { type hw card 0 }

....as my alsa.conf, I get:

/usr/share/alsa $ aplay -l **** List of PLAYBACK Hardware Devices **** ALSA lib conf.c:3949:(snd_config_expand) Unknown parameters 0 ALSA lib control.c:909:(snd_ctl_open_noupdate) Invalid CTL hw:0 aplay: device_list:213: control open (0): Invalid argument

However, it will allow me to use speaker-test, aplay, and arecord....sort of.

Whenever I try to record in the format my codec allows, I get:

/usr/share/alsa $ arecord -D default -traw -fS8 -d2 test.raw Recording raw data 'test.raw' : Signed 8 bit, Rate 8000 Hz, Mono arecord: pcm_read:1346: read error: Input/output error

If it will help, here is the strace of that:

/usr/share/alsa $ strace arecord -D default -traw -fS8 -d2 test.raw execve("/usr/bin/arecord", ["arecord", "-D", "default", "-traw", "-fS8", "-d2", "test.raw"], [/* 7 0 mmap2(NULL, 20, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40005000 stat("/etc/ld.so.cache", {st_mode=S_IFREG|0644, st_size=1150, ...}) = 0 open("/etc/ld.so.cache", O_RDONLY) = 3 mmap2(NULL, 1150, PROT_READ, MAP_SHARED, 3, 0) = 0x40006000 close(3) = 0 open("/usr/lib/libasound.so.2", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0755, st_size=762072, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40007000 read(3, "\177ELF\1\1\1a\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0x\367\1\000"..., 4096) = 4096 mmap2(NULL, 794624, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4000e000 mmap2(0x4000e000, 745564, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x4000e000 mmap2(0x400cc000, 15508, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0xb6) = 0x400cc000 close(3) = 0 munmap(0x40007000, 4096) = 0 open("/lib/libm.so.0", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=45812, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40007000 read(3, "\177ELF\1\1\1a\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0t\22\0\000"..., 4096) = 4096 mmap2(NULL, 81920, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x400d0000 mmap2(0x400d0000, 41428, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x400d0000 mmap2(0x400e2000, 4100, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0xa) = 0x400e2000 close(3) = 0 munmap(0x40007000, 4096) = 0 open("/lib/libdl.so.0", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=8900, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40007000 read(3, "\177ELF\1\1\1a\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0(\10\0\000"..., 4096) = 4096 mmap2(NULL, 40960, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x400e4000 mmap2(0x400e4000, 5760, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x400e4000 mmap2(0x400ed000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x1) = 0x400ed000 close(3) = 0 munmap(0x40007000, 4096) = 0 open("/lib/libpthread.so.0", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=63852, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40007000 read(3, "\177ELF\1\1\1a\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0D<\0\0004"..., 4096) = 4096 mmap2(NULL, 106496, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x400ee000 mmap2(0x400ee000, 40952, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x400ee000 mmap2(0x40100000, 21732, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0xa) = 0x40100000 mmap2(0x40106000, 5788, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x401060 close(3) = 0 munmap(0x40007000, 4096) = 0 open("/lib/libgcc_s.so.1", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=44167, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40007000 read(3, "\177ELF\1\1\1a\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0X\25\0\000"..., 4096) = 4096 mmap2(NULL, 65536, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40108000 mmap2(0x40108000, 28800, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x40108000 mmap2(0x40117000, 548, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x7) = 0x40117000 close(3) = 0 munmap(0x40007000, 4096) = 0 open("/lib/libc.so.0", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=309840, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40007000 read(3, "\177ELF\1\1\1a\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0000\253\0"..., 4096) = 4096 mmap2(NULL, 360448, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40118000 mmap2(0x40118000, 302380, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x40118000 mmap2(0x4016a000, 5172, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x4a) = 0x4016a000 mmap2(0x4016c000, 16020, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40160 close(3) = 0 munmap(0x40007000, 4096) = 0 open("/lib/libm.so.0", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=45812, ...}) = 0 close(3) = 0 open("/lib/libdl.so.0", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=8900, ...}) = 0 close(3) = 0 open("/lib/libpthread.so.0", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=63852, ...}) = 0 close(3) = 0 open("/lib/libgcc_s.so.1", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=44167, ...}) = 0 close(3) = 0 open("/lib/libc.so.0", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=309840, ...}) = 0 close(3) = 0 open("/lib/libc.so.0", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=309840, ...}) = 0 close(3) = 0 open("/lib/libc.so.0", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=309840, ...}) = 0 close(3) = 0 open("/lib/libc.so.0", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=309840, ...}) = 0 close(3) = 0 open("/lib/libc.so.0", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=309840, ...}) = 0 close(3) = 0 munmap(0x40006000, 1150) = 0 stat("/lib/ld-uClibc.so.0", {st_mode=S_IFREG|0755, st_size=21096, ...}) = 0 mprotect(0x400e2000, 4096, PROT_READ) = 0 mprotect(0x400ed000, 4096, PROT_READ) = 0 mprotect(0x40100000, 4096, PROT_READ) = 0 mprotect(0x4016a000, 4096, PROT_READ) = 0 mprotect(0x4000c000, 4096, PROT_READ) = 0 ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B115200 opost isig icanon echo ...}) = 0 ioctl(1, SNDCTL_TMR_TIMEBASE or TCGETS, {B115200 opost isig icanon echo ...}) = 0 getpid() = 893 getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0 setrlimit(RLIMIT_STACK, {rlim_cur=2040*1024, rlim_max=RLIM_INFINITY}) = 0 rt_sigaction(SIGRTMIN, {0x400f7d70, [], 0x4000000 /* SA_??? */}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {0x400f7c98, [RTMIN], 0x4000000 /* SA_??? */}, NULL, 8) = 0 rt_sigaction(SIGRT_2, {0x400f72d0, [], 0x4000000 /* SA_??? */}, NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, [RTMIN], NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RT_1], NULL, 8) = 0 brk(0) = 0x1c000 brk(0x1d000) = 0x1d000 stat("/usr/share/alsa/alsa.conf", {st_mode=S_IFREG|0644, st_size=166, ...}) = 0 open("/usr/share/alsa/alsa.conf", O_RDONLY) = 3 ioctl(3, SNDCTL_TMR_TIMEBASE or TCGETS, 0xbeea6ae4) = -1 ENOTTY (Inappropriate ioctl for device) brk(0x1e000) = 0x1e000 read(3, "pcm.!default {\n type hw\n car"..., 4096) = 166 read(3, "", 4096) = 0 close(3) = 0 stat("/etc/ld.so.cache", {st_mode=S_IFREG|0644, st_size=1150, ...}) = 0 open("/etc/ld.so.cache", O_RDONLY) = 3 mmap2(NULL, 1150, PROT_READ, MAP_SHARED, 3, 0) = 0x40006000 close(3) = 0 open("/usr/lib/libasound.so.2", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0755, st_size=762072, ...}) = 0 close(3) = 0 open("/dev/snd/controlC0", O_RDWR) = 3 ioctl(3, USBDEVFS_CONTROL, 0xbeea69b8) = 0 ioctl(3, 0x40045532, 0xbeea69c4) = 0 open("/dev/snd/pcmC0D0c", O_RDWR|O_NONBLOCK) = 4 close(3) = 0 ioctl(4, AGPIOC_ACQUIRE or APM_IOC_STANDBY, 0xbeea6808) = 0 fcntl(4, F_GETFL) = 0x802 (flags O_RDWR|O_NONBLOCK) ioctl(4, AGPIOC_INFO, 0xbeea69b4) = 0 ioctl(4, AGPIOC_RELEASE or APM_IOC_SUSPEND, 0xbeea69ac) = 0 mmap2(NULL, 4096, PROT_READ, MAP_SHARED, 4, 0xfff80000) = -1 ENXIO (No such device or address) ioctl(4, 0xc0844123, 0xbeea6928) = 0 fcntl(4, F_GETFL) = 0x802 (flags O_RDWR|O_NONBLOCK) fcntl(4, F_SETFL, O_RDWR) = 0 ioctl(4, AGPIOC_ACQUIRE or APM_IOC_STANDBY, 0xbeea6c9c) = 0 rt_sigaction(SIGINT, {0x11530, [INT], SA_RESTART|0x4000000}, {SIG_DFL}, 8) = 0 rt_sigaction(SIGTERM, {0x11530, [TERM], SA_RESTART|0x4000000}, {SIG_DFL}, 8) = 0 rt_sigaction(SIGABRT, {0x11530, [ABRT], SA_RESTART|0x4000000}, {SIG_DFL}, 8) = 0 write(2, "Recording", 9Recording) = 9 write(2, " ", 1 ) = 1 write(2, "raw data", 8raw data) = 8 write(2, " '", 2 ') = 2 write(2, "test.raw", 8test.raw) = 8 write(2, "' : ", 4' : ) = 4 write(2, "Signed 8 bit", 12Signed 8 bit) = 12 write(2, ", ", 2, ) = 2 write(2, "Rate ", 5Rate ) = 5 write(2, "8000", 48000) = 4 write(2, " Hz, ", 5 Hz, ) = 5 write(2, "Mono", 4Mono) = 4 write(2, "\n", 1 ) = 1 ioctl(4, 0xc25c4110, 0xbeea496c) = 0 ioctl(4, 0xc25c4110, 0xbeea496c) = 0 ioctl(4, 0xc25c4110, 0xbeea496c) = 0 ioctl(4, 0xc25c4110, 0xbeea496c) = 0 ioctl(4, 0xc25c4110, 0xbeea496c) = 0 ioctl(4, 0xc25c4110, 0xbeea496c) = 0 ioctl(4, 0xc25c4110, 0xbeea496c) = 0 ioctl(4, 0xc25c4111, 0xbeea496c) = 0 ioctl(4, 0xc0844123, 0x1c448) = 0 ioctl(4, 0xc0684113, 0xbeea4870) = 0 ioctl(4, 0x4140, 0x400ba1a8) = 0 ioctl(4, 0xc0844123, 0x1c448) = 0 ioctl(4, 0xc0844123, 0x1c448) = 0 rmdir("test.raw") = -1 ENOTDIR (Not a directory) unlink("test.raw") = 0 open("test.raw", O_WRONLY|O_CREAT|O_LARGEFILE, 0644) = 3 ioctl(4, 0x800c4151, 0xbeea4c14) = -1 EIO (Input/output error) write(2, "arecord", 7arecord) = 7 write(2, ": ", 2: ) = 2 write(2, "pcm_read", 8pcm_read) = 8 write(2, ":", 1:) = 1 write(2, "1346", 41346) = 4 write(2, ": ", 2: ) = 2 write(2, "read error: ", 12read error: ) = 12 write(2, "Input/output error", 18Input/output error) = 18 write(2, "\n", 1 ) = 1 exit(1) = ? Process 893 detached

As my codec expects u-law, I am going to create a test file in u-law format and see if that gives me better results with speaker-test.

Paul