diff options
| author | LiPeng Huang <huanglipeng@vivo.com> | 2026-02-05 04:48:52 +0300 |
|---|---|---|
| committer | Hans Verkuil <hverkuil+cisco@kernel.org> | 2026-03-17 16:43:57 +0300 |
| commit | a93a51f42ac354425a252210183c4151d991f75d (patch) | |
| tree | 0826de266ff35774c50a38e2770971c33d660576 | |
| parent | 1f03894b2830e21f62659a803d76d06918deb3b3 (diff) | |
| download | linux-a93a51f42ac354425a252210183c4151d991f75d.tar.xz | |
media: lirc: increase IR_MAX_DURATION to send extended code sequences
sensor:increase IR_MAX_DURATION to 1000ms
to fix long IR remote timeouts Certain infrared remotes
(e.g., brand-specific smart home remotes, custom consumer electronics)
send extended code sequences that exceed the default 500ms
IR_MAX_DURATION threshold. This causes the kernel's raw
IR driver to discard incomplete code, resulting in unrecognized commands.
Increase IR_MAX_DURATION to 1000ms:
- Aligns with common extended IR protocol specs
(most long sequences use 700-900ms)
- No impact on standard remotes
(all mainstream IR codes are <500ms)
- Validated on vivo X200 and vivo X300,
resolves timeout issues without regressions
Signed-off-by: LiPeng Huang <huanglipeng@vivo.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
| -rw-r--r-- | drivers/media/rc/gpio-ir-tx.c | 4 | ||||
| -rw-r--r-- | include/media/rc-core.h | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/drivers/media/rc/gpio-ir-tx.c b/drivers/media/rc/gpio-ir-tx.c index e185ead40464..d15fb17fa0fa 100644 --- a/drivers/media/rc/gpio-ir-tx.c +++ b/drivers/media/rc/gpio-ir-tx.c @@ -51,7 +51,7 @@ static int gpio_ir_tx_set_carrier(struct rc_dev *dev, u32 carrier) static void delay_until(ktime_t until) { /* - * delta should never exceed 0.5 seconds (IR_MAX_DURATION) and on + * delta should never exceed 1 second (IR_MAX_DURATION) and on * m68k ndelay(s64) does not compile; so use s32 rather than s64. */ s32 delta; @@ -95,7 +95,7 @@ static void gpio_ir_tx_modulated(struct gpio_ir *gpio_ir, uint *txbuf, { ktime_t edge; /* - * delta should never exceed 0.5 seconds (IR_MAX_DURATION) and on + * delta should never exceed 1 second (IR_MAX_DURATION) and on * m68k ndelay(s64) does not compile; so use s32 rather than s64. */ s32 delta; diff --git a/include/media/rc-core.h b/include/media/rc-core.h index 7c964b5ad792..d37fffc5dc3c 100644 --- a/include/media/rc-core.h +++ b/include/media/rc-core.h @@ -301,7 +301,7 @@ struct ir_raw_event { #define US_TO_NS(usec) ((usec) * 1000) #define MS_TO_US(msec) ((msec) * 1000) -#define IR_MAX_DURATION MS_TO_US(500) +#define IR_MAX_DURATION MS_TO_US(1000) #define IR_DEFAULT_TIMEOUT MS_TO_US(125) #define IR_MAX_TIMEOUT LIRC_VALUE_MASK |