On Thu, Oct 09, 2014 at 09:30:36PM +0300, Tomas Melin wrote:
>IR reciever using nuvoton-cir and lirc was not working anymore after
>upgrade from kernel 3.16 to 3.17-rcX.
>Bisected regression to commit da6e162d6a4607362f8478c715c797d84d449f8b
>("[media] rc-core: simplify sysfs code").
>
>The regression comes from adding function change_protocol in
>ir-raw.c. During registration, ir_raw_event_register enables all protocols
>by default. Later, rc_register_device also tests dev->change_protocol and
>changes the enabled protocols based on rc_map type. However, rc_map type
>only defines a single specific protocol, so in the case of a more generic
>driver, this disables all protocols but the one defined by the map.
>
>Changed back to original behaviour by removing empty function
>change_protocol in ir-raw.c. Instead only calling change_protocol for
>drivers that actually have the function set up.
I think this is already addressed in this thread:
http://www.spinics.net/lists/linux-media/msg79865.html
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