This patch adds "LPBK" buttons to the output strip
channels allowing to toggle the hardware output
loopback state.
Efforts were made to hide the buttons for not yet
enabled devices but due to difficulties in implementation
was cancelled for the time being. Should it be a no-go
efforts should be made to fix this and hide them,
although I would think fixing the driver for other
devices would be an effort with much more merit.
This is currently only enabled for HDSP9632 devices
with following driver patch:
da2a040ee7
We check whether the system has the kernel patch
applied by calling `HDSPMixerCard::supportsLoopback()`
and if not these buttons remain gray (off) and do
nothing when clicked.
Signed-off-by: Jasmin Fazlic <superfassl@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
- Added tick marks at 4dB intervals
- Small fixes and cleanup to buttons
- Better ALSA branding
All pixmaps provided by Reuben Martin.
Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Reuben Martin has provided me with an updated pixmap set to replace
RME's 1998 style no longer in use by the corresponding Win32 tools.
The Linux pixmaps are based on ardour2. Likewise hdspmixer, ardour2 is
GPLv2.
Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
All compiler warnings were caused by a conversion from "foo" to a
char pointer. Given that the string itself really is constant, simply
add the keyword to make g++ happy.
Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
