matthieu castet wrote:
Hi,
what's the status of tm6010 support ?
http://www.mail-archive.com/linux-media@xxxxxxxxxxxxxxx/msg04048.html
announced some patches,
but nothing seems to have happened ?
Matthieu
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Mauro has it on his TODO list:
http://www.mail-archive.com/linux-media@xxxxxxxxxxxxxxx/msg08770.html
I'm not spending any time on this at the moment, and probably won't in
the future. I spent some time reading the code for the existing driver
and submitted a few trivial patches, and quite a bit of time with a USB
sniffer to try and determine where the Linux and Windows XP driver
behaved differently. But I have subsequently purchased an Asus My-Cinema
U3100 Mini (DVB-T only) that is cheap and worked out of the box on
Ubuntu. So I no longer have much motivation to work on this.
I was surprised to find that data sheets are difficult to obtain for the
tm6010, and for a lot of other chips used in TV devices as well. Why? I
thought these companies made money by selling chips in significant
volume rather than by selling development kits. So surely they would
sell more chips by making documentation available to anyone who wants to
support their products. If there are trade secrets they are trying to
protect surely these are in the hardware and firmware rather than the
driver and the protocols used to communicate with the hardware. Perhaps
someone on this list can explain how this makes business sense.
So it seems it is common practice to use reverse engineering to get
drivers working. This is a lot of work and makes me really appreciate
the work that has been put in by v4l developers.
Kevin Wells
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