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eb7717d710
Origin commit data
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Branch: master
Commit: 2729075a35
Author: martii <m4rtii@gmx.de>
Date: 2014-04-16 (Wed, 16 Apr 2014)
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This commit was generated by Migit
libtriple reimplements the interfaces of the libcoolstrem library for the Tripledragon receiver. There are a few debugging or configuration helpers which affect the way libtriple does some things. They are all configured by exporting environment variables, which are described here: TRIPLE_NOSCART=1 - makes neutrino *not* do any voltage switching on SCART pin 8, probably not useful for anyone but me TRIPLE_DEBUG=... - controls various debugging levels in libtriple valid values for the different component: audio 0x01 video 0x02 demux 0x04 play 0x08 power 0x10 init 0x20 ca 0x40 record 0x80 all 0xff multiple levels are added / ORed together, so if you want to debug record and playback code, do "export TRIPLE_DEBUG=0x88" for audio & video use TRIPLE_DEBUG=0x3 DSP_DEVICE MIX_DEVICE - alternative audio devices for the audioplayer and internet radio. Those are used to output music to e.g. USB audio devices. Here is what you need to do: * look in /dev/sound which devices are already there. Probably /dev/sound/dsp and /dev/sound/mixer, created by the tdoss driver * make sure that the USB HC driver is loaded: modprobe ohci-hcd * load the USB audio driver: modprobe audio * plug in your USB audio device, check with "dmesg" that it is recognised by the kernel * look in /dev/sound which new devices are there. Probably it's /dev/sound/dsp1 and /dev/sound/mixer1. If there are more - well it's time to experiment ;) * export DSP_DEVICE=/dev/sound/dsp1 and MIX_DEVICE=/dev/sound/mixer1 (of course the devices you found in the last step) * from the same shell you exported the variables, start neutrino (make sure that an already running neutrino is stopped before you do that) * start the audioplayer, play a track. Look for log lines like [LT:106b5788:audio ] PrepareClipPlay: dsp_dev /dev/sound/dsp1 mix_dev /dev/sound/mixer1 * if it works - fine :-) * if it does not work, look for: PrepareClipPlay: DSP_DEVICE is set (/dev/sound/dsp1) but cannot be opened, fall back to /dev/sound/dsp PrepareClipPlay: dsp_dev /dev/sound/dsp mix_dev /dev/sound/mixer1 PrepareClipPlay: open mixer /dev/sound/mixer1 failed (No such file or directory) * this basically means that the device is not there. Different errors will get different messages - I cannot trigger those now, so you'll need to find them out by yourself ;) * another possible messag you may get is: PrepareClipPlay: more than one mixer control: devmask 00000021 stereo 00000021 This means that your device has more than one mixer. The set bit numbers in the devmask are the different mixers, in this case it would be number 0 and 5. To select one of those, export MIX_NUMBER=5 or MIX_NUMBER=0 (this code is untested, there may be bugs) So now I found out what devices to use, but how do I make that permanent? That's easy: * create or extend /etc/rcS.local with modprobe ohci-hcd modprobe audio * create or extend /etc/profile.local with export DSP_DEVICE=/dev/sound/dsp1 export MIX_DEVICE=/dev/sound/mixer1 * reboot. Enjoy.