Difference between revisions of "HardwareAndDrivers"
From odroid US
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linux kernel. There's a tree on [https://github.com/ThijsWithaar/linux/tree/odroid-3.8-cec github] which | linux kernel. There's a tree on [https://github.com/ThijsWithaar/linux/tree/odroid-3.8-cec github] which | ||
contains the ported android driver. It is tested on a OdroidX2. | contains the ported android driver. It is tested on a OdroidX2. | ||
| + | <pre> | ||
| + | git clone https://github.com/ThijsWithaar/linux.git | ||
| + | git checkout odroid-3.8-cec | ||
| + | </pre> | ||
To make the drivers, checkout the patched sources above, then follow the instructions on | To make the drivers, checkout the patched sources above, then follow the instructions on | ||
Revision as of 12:17, 1 July 2013
Hardware and Drivers
HDMI CEC
Part of the HDMI protocol is the CEC protocol. This allows controlling of the TV over the HDMI cable.
For android, there's by default a driver available, which is not in the standard linux kernel. There's a tree on github which contains the ported android driver. It is tested on a OdroidX2.
git clone https://github.com/ThijsWithaar/linux.git git checkout odroid-3.8-cec
To make the drivers, checkout the patched sources above, then follow the instructions on Step-by-step_Native_Compiling_a_Kernel. Modify the .config file such that it contains
CONFIG_VIDEO_SAMSUNG_S5P_HDMI_CEC=m
After compiling and installing the driver (drivers/media/platform/s5p-cec.ko)
dmesg | grep cec
should contain lines like:
[ 63.530000] S5P CEC for TVOUT Driver, Copyright (c) 2011 Samsung Electronics Co., LTD. [ 63.535000] s5p-cec s5p-cec: probe start [ 63.535000] s5p_cec_probe: pdata=ed0e9540 [ 63.540000] s5p_cec_cfg_gpio() [ 63.545000] s5p-cec s5p-cec: s5p_cec_mem_probe(): mapped cec_base to f005e000, size 1000 [ 63.550000] s5p-cec s5p-cec: Requesting irq 146 for s5p-cec [ 63.555000] s5p-cec s5p-cec: probe successful
To build the matching user space program do:
git clone https://github.com/vamanea/libcec.git cd libcec ./configure --enable-exynos make make install
Now use 'cec-client -l' or 'cec-client -m' to try it out!
