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Commit 25543fa7 authored by Clemens Ladisch's avatar Clemens Ladisch Committed by Jaroslav Kysela
Browse files

[ALSA] cmipci: document 'Modem' control version check 



Add a comment that explains why the 'Modem' control doesn't work with
newer chips.

Signed-off-by: default avatarClemens Ladisch <clemens@ladisch.de>
Signed-off-by: default avatarJaroslav Kysela <perex@perex.cz>
parent 69a07304

sound/pci/cmipci.c

+4 −0
Original line number Diff line number Diff line
@@ -2733,6 +2733,10 @@ static int __devinit snd_cmipci_mixer_new(struct cmipci *cm, int pcm_spdif_devic 
	}



	/* card switches */

	/*

	 * newer chips don't have the register bits to force modem link

	 * detection; the bit that was FLINKON now mutes CH1

	 */

	if (cm->chip_version < 39) {

		err = snd_ctl_add(cm->card,

				  snd_ctl_new1(&snd_cmipci_modem_switch, cm));