At Wed, 7 Oct 2009 14:01:51 +0800, Li Bo wrote: > > On Wed, Oct 7, 2009 at 2:03 AM, Takashi Iwai <tiwai@xxxxxxx> wrote: > > At Wed, 7 Oct 2009 01:42:50 +0800, > > Li Bo wrote: > >> > >> On Tue, Oct 6, 2009 at 11:55 PM, Li Bo <liboat@xxxxxxxxx> wrote: > >> > On Tue, Oct 6, 2009 at 1:47 PM, Takashi Iwai <tiwai@xxxxxxx> wrote: > >> >> At Tue, 6 Oct 2009 12:44:28 +0800, > >> >> Li Bo wrote: > >> >>> > >> >>> Hi, Takashi > >> >>> When independent hp switches from > >> >>> on -> off: hp volume/switch is deactivated > >> >>> off -> hp volume switch is activated > >> >>> These 2 actions are one-shot setup, so we put "need reboot" to remind user > >> >>> that hp volume/switch update will only take effect after reboot. > >> >> > >> >> First off, you don't have to "reboot" at all :) > >> >> > >> > > >> > I also want to kick that "reboot" off:) > >> > > >> >> And, the activation/deactivation can be done on the fly, so it's no > >> >> more "one-shot" action (if implemented properly). > >> >> > >> >> > >> >> Takashi > >> >> > >> > > >> > You mean just act/deact on via_independent_hp_put? I'll try and update this, > >> > thank you! > >> > > >> Sorry I don't know how to activate/deactivate on the fly. I toggle access' > >> SNDRV_CTL_ELEM_ACCESS_INACTIVE bit in via_independent_hp_put, but > >> in alsamixer it cannot reflect the change unless restart it. Please > >> give some help. > > > > You simply need to notify the control elements you changed via > > snd_ctl_notify(). > > Then the mixer app will update the status as well. > > > > > > Takashi > > > > I add snd_ctl_notify after access update, but test with results that: > - alsamixer (v1.0.21) will gray/de-grayed the control only after > restart the application Hm, strange. Are you sure that it's notified? > - gnome-volume-control will just ignore the access bit and display > the control as usual. Then it's a bug of gnome-volume-control (maybe in gstreamer). > Maybe we have to backward to snd_ctl_remove implementation. No, removing is a really bad interface. If the control notification is done properly, it's just a matter of application side. When the control is inactive, you can't change the value, so it's anyway safe in the driver perspective. thanks, Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
