Re: [alsa-devel] Bug report - patch_realtek.c - Laptop HP COMPAQ B1900 Series

At Wed, 15 Feb 2012 17:31:44 +0800, joey.jiaojg wrote:

Here is the diff file.

Thanks.

+/* toggle speaker-output according to the hp-jack state */ +static void alc260_b1900_automute(struct hda_codec *codec) +{

•    unsigned int present;
  

• present = snd_hda_jack_detect(codec, 0x0f);
• if (present) {

• snd_hda_codec_write_cache(codec, 0x01, 0,
  

• 			  AC_VERB_SET_GPIO_MASK, 0);
  

• snd_hda_codec_write_cache(codec, 0x01, 0,
  

• 			  AC_VERB_SET_GPIO_DIRECTION,
  

• 			  0);
  

What actually this GPIO bit does on your device? To mute/unmute the speaker?

If so, doesn't the speaker toggle work with just changing the pin-control of the corresponding pin?

Takashi