mirror of
https://github.com/tuxbox-fork-migrations/recycled-ni-libstb-hal.git
synced 2025-08-26 15:02:43 +02:00
5bdef628ae
Origin commit data
------------------
Branch: master
Commit: d8c3c47b86
Author: TangoCash <eric@loxat.de>
Date: 2017-09-12 (Tue, 12 Sep 2017)
------------------
No further description and justification available within origin commit message!
------------------
This commit was generated by Migit
73 lines
3.1 KiB
Plaintext
73 lines
3.1 KiB
Plaintext
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.
|