sound/hd-audio/notes.rst

74 0 is the default value for all other
104           last cmd=0x12345678
106           last cmd=0x12345678
128 In such a case, turn the bit 8 (0x100) of ``probe_mask`` option on.
130 unconditionally.  For example, ``probe_mask=0x103`` will force to probe
131 the codec slots 0 and 1 no matter what the hardware reports.
144 in the recent kernel, try to pass ``enable_msi=0`` option to disable
263   chance via SET_EAPD_BTL verb (0x70c).  On others, GPIO pin (mostly
270   triggered.  Issuing GET_PIN_SENSE verb (0xf09) may result in the
289 should be set to exactly 50%, corresponding to 0dB -- neither extra
335 codec slot #2 of the first card (#0).  For debug-tools such as
425 value of the pin widget 0x14 to 0x9993013f, and let the driver
429     # echo 0x14 0x9993013f > /sys/class/sound/hwC0D0/user_pin_configs
442 ``1`` or ``0`` can be passed.
526     0x12345678 0xabcd1234 2
532     0x12 0x411111f0
535     0x20 0x500 0x03
536     0x20 0x400 0xff
543 three numbers indicating the codec vendor-id (0x12345678 in the
544 example), the codec subsystem-id (0xabcd1234) and the address (2) of
546 until another codec entry is given.  Passing 0 or a negative number to
563 Another example to override the codec vendor id from 0x12345678 to
564 0xdeadbeef is like below:
568     0x12345678 0xabcd1234 2
571     0xdeadbeef
580     0x12345678 0xabcd1234 2
583     0xffff1111
586     0x10
660 	   <...>-7807  [002] 105147.774889: hda_send_cmd: [0:0] val=e3a019
661 	   <...>-7807  [002] 105147.774893: hda_send_cmd: [0:0] val=e39019
662 	   <...>-7807  [002] 105147.999542: hda_send_cmd: [0:0] val=e3a01a
663 	   <...>-7807  [002] 105147.999543: hda_send_cmd: [0:0] val=e3901a
664 	   <...>-26764 [001] 349222.837143: hda_send_cmd: [0:0] val=e3a019
665 	   <...>-26764 [001] 349222.837148: hda_send_cmd: [0:0] val=e39019
666 	   <...>-26764 [001] 349223.058539: hda_send_cmd: [0:0] val=e3a01a
667 	   <...>-26764 [001] 349223.058541: hda_send_cmd: [0:0] val=e3901a
669 Here ``[0:0]`` indicates the card number and the codec address, and
676     % hda-decode-verb 0xe3a019
677     raw value = 0x00e3a019
678     cid = 0, nid = 0x0e, verb = 0x3a0, parm = 0x19
679     raw value: verb = 0x3a0, parm = 0x19
681     amp raw val = 0xa019
682     output, left, idx=0, mute=0, val=25
771 on the slot 2 of the card 0, pass /dev/snd/hwC0D2 to the first
782     % hda-verb /dev/snd/hwC0D0 0x12 0x701 2
783     nid = 0x12, verb = 0x701, param = 0x2
784     value = 0x0
786     % hda-verb /dev/snd/hwC0D0 0x0 PARAMETERS VENDOR_ID
787     nid = 0x0, verb = 0xf00, param = 0x0
788     value = 0x10ec0262
790     % hda-verb /dev/snd/hwC0D0 2 set_a 0xb080
791     nid = 0x2, verb = 0x300, param = 0xb080
792     value = 0x0