Hi all, If you get a chance, try rebuilding a new target, or at least upgrade to 0.13 moblin-applets. I've added a mixer control which uses ALSA to populate a list of the most useful tracks on simple sound cards. It's a single dialog that uses notebook pages for each track instead of just displaying them all messily from left to right. I've also added HUGE buttons because I'm tired of scrounging for my pen to tap the little volume buttons in the status bar. I want the user to be able to just smack away at this with their fingers and have no issues. Also, all of the tracks have independent left and right controls for volume and mute, so I added a sync button for each to allow the user to control left/right in unison (just like in the ubuntu version but in a different style).
The code uses ALSA to populate a list of all the tracks that have playback volume or switch controls, then scans for 4 key tracks which I think will make the most sense to provide to the user: Master (PCM), Speakers (Front), Microphone (Mic), and Headphones (Headphone): To see a full list of the tracks the system supports just install alsa-utils, and run amixer, it will show all the tracks which fall into three primary types: playback, capture, and input source. For now I've just included the playback tracks because the devices we currently have aren't that complex, but we can easily add on other tracks in the future. The Samsung has the following: PCM: I call this "Master" because it has the widest range and no mute switches, it seems designed to control the underlying volume that gets channeled to the other tracks like spearkers and headphones. Front: This guy I call "Speakers" because it just controls the two front speakers on the Samsung, and it has both volume and mute controls Microphone: I included the Micrphone playback track which includes both volume and mute capability, it seems to work ok as the input to the mic gets sent out over the speakers and headphones just fine, however I still haven't gotten arecord to function yet. Headphones: The included a headphone track which has no volume slider (the Fron volume slider seems to also affect headphones, but it does have independent mute switches. Ideally I'd like to get PPM to control the Front and Headphone Mute buttons manually whenever the "Headphone plugged" ACPI event is received. That way it will react as a normal devidce does when using headphones. I have compiled all the basic functions I use for controlling the sound via ALSA into a library called libvolumecontrol.so and it's placed in /usr/share/moblin-applets. So if the PPM guys want to try to load it in and do some tests, have at it. The header file is in the moblin-applets source tree at libvolumecontrol/volume.h. If anyone makes the request I can turn this library into a standard runtime library with a dev version with header files for easy programming and use since ALSA is a pain in the butt to understand with so little documentation. I still have to make some small glade cosmetic improvements like disabling the volume controls if ALSA determines that the track doesn't have them. For instance the Headphones tab has volume controls but they just don't do anything at the moment. ----------------------------------------- | Todd Brandt - Intel Oregon | |Linux for Mobile Internet Devices (MID)| | 2111 W NE 25th Ave | | Hillsboro, OR 97124 JF1-235 | |---------------------------------------| | "Of all the things I've lost, I miss | | my mind the most" - Mark Twain | ----------------------------------------- _______________________________________________ dev mailing list [EMAIL PROTECTED] https://www.moblin.org/mailman/listinfo/dev -- Ubuntu-mobile mailing list Ubuntu-mobile@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-mobile
