3.9.2 kernel - IR / em28xx_rc broken?

Message ID 1369010702.23562.YahooMailNeo@web120304.mail.ne1.yahoo.com (mailing list archive)
State Rejected, archived
Headers

Commit Message

Chris Rankin May 20, 2013, 12:45 a.m. UTC
  ----- Original Message -----

> I'm not familar with ir-keytable and the RC core.
> Mauro ? Can you take over ? ;)

This patch seems to "do the right thing"... I doubt it will apply cleanly because of TAB/space issues, but you should get the idea :-).


This is against 3.9.3.

Signed-off-by: Chris Rankin <rankincj@yahoo.com>
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Comments

Frank Schaefer May 20, 2013, 12:40 p.m. UTC | #1
Am 20.05.2013 02:45, schrieb Chris Rankin:
> ----- Original Message -----
>
>> I'm not familar with ir-keytable and the RC core.
>> Mauro ? Can you take over ? ;)
> This patch seems to "do the right thing"... I doubt it will apply cleanly because of TAB/space issues, but you should get the idea :-).
>
> --- linux-3.9/drivers/media/usb/em28xx/em28xx-input.c.orig    2013-05-19 21:18:39.000000000 +0100
> +++ linux-3.9/drivers/media/usb/em28xx/em28xx-input.c    2013-05-20 01:36:51.000000000 +0100
> @@ -417,6 +417,7 @@
>          *rc_type = RC_BIT_RC6_0;
>      } else if (*rc_type & RC_BIT_UNKNOWN) {
>          *rc_type = RC_BIT_UNKNOWN;
> +                return 0;
>      } else {
>          *rc_type = ir->rc_type;
>          return -EINVAL;
>
> This is against 3.9.3.
>
> Signed-off-by: Chris Rankin <rankincj@yahoo.com>
No, this patch is wrong.
Updating ir->rc_type with the new value of *rc_type is correct.

Regards,
Frank
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Chris Rankin May 20, 2013, 12:48 p.m. UTC | #2
----- Original Message -----

> This patch seems to "do the right thing"... I doubt it will apply cleanly because of TAB/space issues, but you should get the idea :-).
>
> --- linux-3.9/drivers/media/usb/em28xx/em28xx-input.c.orig    2013-05-19 21:18:39.000000000 +0100
> +++ linux-3.9/drivers/media/usb/em28xx/em28xx-input.c    2013-05-20 01:36:51.000000000 +0100
> @@ -417,6 +417,7 @@
>          *rc_type = RC_BIT_RC6_0;
>      } else if (*rc_type & RC_BIT_UNKNOWN) {
>          *rc_type = RC_BIT_UNKNOWN;
> +                return 0;
>      } else {
>          *rc_type = ir->rc_type;
>          return -EINVAL;
>
> This is against 3.9.3.
>
> Signed-off-by: Chris Rankin <rankincj@yahoo.com>

> No, this patch is wrong.
> Updating ir->rc_type with the new value of *rc_type is correct.

Well, it restores 3.8 behaviour, i.e. em28xx not clobbering its "RC5" configuration when RC core subsequently calls ir_change_protocol() with *rc_type=RC_BIT_UNKNOWN. The ir->rc_type parameter is new to 3.9, by the looks of things.

Cheers,
Chris

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Patch

--- linux-3.9/drivers/media/usb/em28xx/em28xx-input.c.orig    2013-05-19 21:18:39.000000000 +0100
+++ linux-3.9/drivers/media/usb/em28xx/em28xx-input.c    2013-05-20 01:36:51.000000000 +0100
@@ -417,6 +417,7 @@ 
         *rc_type = RC_BIT_RC6_0;
     } else if (*rc_type & RC_BIT_UNKNOWN) {
         *rc_type = RC_BIT_UNKNOWN;
+                return 0;
     } else {
         *rc_type = ir->rc_type;
         return -EINVAL;