alsamixer: function snd_mixer_load failed: Invalid argument
After some debugging, it appears as though a bunch of mixer settings get loaded until the one named "Digital In Playback Source". After stepping through that, I reached a call to ioctl in control_hw.c line 148. Here is the complete stack trace:
#0 snd_ctl_hw_elem_read (handle=0x8050c58, control=0xbfffecd0)
at control_hw.c:147
#1 0x4008a339 in snd_ctl_elem_read (ctl=0x8050c58, control=0xbfffecd0)
at control.c:264
#2 0x4008990e in snd_hctl_elem_read (elem=0x8059248, value=0xbfffecd0)
at hcontrol.c:766
#3 0x40094063 in elem_read_enum (s=0x805c008) at simple.c:304
#4 0x40094213 in selem_read (elem=0x805c2a0) at simple.c:336
#5 0x40095d74 in simple_add1 (class=0x8050bc0,
name=0x8059258 "Digital In Playback Source", helem=0x8059248,
type=CTL_ENUMLIST, value=0) at simple.c:981
#6 0x40095fd8 in simple_event_add (class=0x8050bc0, helem=0x8059248)
at simple.c:1028
#7 0x40096230 in simple_event (class=0x8050bc0, mask=4, helem=0x8059248,
melem=0x0) at simple.c:1079
#8 0x400921a5 in hctl_event_handler (hctl=0x80583c0, mask=4, elem=0x8059248)
at mixer.c:187
#9 0x40088543 in snd_hctl_throw_event (hctl=0x80583c0, mask=4, elem=0x8059248)
at hcontrol.c:196
#10 0x400892e7 in snd_hctl_load (hctl=0x80583c0) at hcontrol.c:587
#11 0x40092a48 in snd_mixer_load (mixer=0x8050c80) at mixer.c:469
#12 0x0804da3a in mixer_init () at alsamixer.c:1423
#13 0x0804eef9 in main (argc=3, argv=0xbffff9f4) at alsamixer.c:2016
#14 0x40196bb4 in __libc_start_main () from /lib/libc.so.6
The call to ioctl returns EINVAL. It appears as though the data being sent to the extigy is corrupted and the OS is throwing the error. Can anyone else make sense of this?
-Gary
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