On 06/16/2011 01:03 PM, Daniel Mack wrote:
On Thu, Jun 16, 2011 at 12:13 PM, Mark Brown broonie@opensource.wolfsonmicro.com wrote:
On Thu, Jun 16, 2011 at 11:51:20AM +0200, Daniel Mack wrote:
# amixer cget numid=39 numid=39,iface=MIXER,name='Limiter1 Attack Threshold (DRC Mode)' ; type=INTEGER,access=rw---R--,values=1,min=0,max=16,step=0 : values=9 | dBrange- 0x00000000,0x00000007,0x00000001,0x00000008,0xfffff3e4,0x000000c8,0x00000008,0x0000000d,0x00000001,0x00000008,0xfffff9c0,0x00000064,0x0000000e,0x00000010,0x00000001,0x00000008,0xfffffc18,0x0000012c,
Is there a way to get more descriptive information about possible values for such controls?
This looks rather like a buggy userspace - are you sure you're using a current version?
# amixer --version amixer version 1.0.24.2
This is indeed strange, and I can't see how I use the API in any illegal way. Any other way to debug this?
There seems to be a bug in amixer, please try:
diff --git a/amixer/amixer.c b/amixer/amixer.c index a177288..c7b93b7 100644 --- a/amixer/amixer.c +++ b/amixer/amixer.c @@ -517,7 +517,7 @@ static void decode_tlv(unsigned int spaces, unsigned int *tlv, unsigned int tlv_ #ifdef SND_CTL_TLVT_DB_RANGE case SND_CTL_TLVT_DB_RANGE: printf("dBrange-\n"); - if ((size / (6 * sizeof(unsigned int))) != 0) { + if ((size % (6 * sizeof(unsigned int))) != 0) { while (size > 0) { printf("0x%08x,", tlv[idx++]); size -= sizeof(unsigned int); @@ -529,7 +529,7 @@ static void decode_tlv(unsigned int spaces, unsigned int *tlv, unsigned int tlv_ print_spaces(spaces + 2); printf("rangemin=%i,", tlv[0]); printf(",rangemax=%i\n", tlv[1]); - decode_tlv(spaces + 4, tlv + 2, 6 * sizeof(unsigned int)); + decode_tlv(spaces + 4, tlv + 2, 4 * sizeof(unsigned int)); idx += 6 * sizeof(unsigned int); } break;