Messages in this thread Patch in this message | | | Date | Sat, 14 May 2016 18:01:26 +0100 | From | Jonathan McDowell <> | Subject | [PATCH] Fix RC5 decoding with Fintek CIR chipset |
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Fix RC5 decoding with Fintek CIR chipset
Commit e87b540be2dd02552fb9244d50ae8b4e4619a34b tightened up the RC5 decoding by adding a check for trailing silence to ensure a valid RC5 command had been received. Unfortunately the trailer length checked was 10 units and the Fintek CIR device does not want to provide details of a space longer than 6350us. This meant that RC5 remotes working on a Fintek setup on 3.16 failed on 3.17 and later. Fix this by shortening the trailer check to 6 units (allowing for a previous space in the received remote command).
Signed-off-by: Jonathan McDowell <noodles@earth.li> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=117221 Cc: stable@vger.kernel.org
----- diff --git a/drivers/media/rc/ir-rc5-decoder.c b/drivers/media/rc/ir-rc5-decoder.c index 6ffe776..a0fd4e6 100644 --- a/drivers/media/rc/ir-rc5-decoder.c +++ b/drivers/media/rc/ir-rc5-decoder.c @@ -29,7 +29,7 @@ #define RC5_BIT_START (1 * RC5_UNIT) #define RC5_BIT_END (1 * RC5_UNIT) #define RC5X_SPACE (4 * RC5_UNIT) -#define RC5_TRAILER (10 * RC5_UNIT) /* In reality, approx 100 */ +#define RC5_TRAILER (6 * RC5_UNIT) /* In reality, approx 100 */ enum rc5_state { STATE_INACTIVE, ----- J.
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