HI Gregor, Em Wed, 15 Jun 2016 22:25:06 +0200 Gregor Jasny <gjasny@xxxxxxxxxxxxxx> escreveu: > Hello, > > could someone please help me triaging the following ir-keytable bug? The > reporter complains that the 'other' IR protocol results in double clicks > and we should set the device to RC6 instead: > > https://bugs.launchpad.net/ubuntu/+source/v4l-utils/+bug/1579760 > > This is what we have in v4l-utils: > https://git.linuxtv.org/v4l-utils.git/tree/utils/keytable/rc_keymaps/imon_pad The way it works is that the keymap table comes from the Kernel driver. The scripts at v4l-utils just copies whatever is there. Please notice that the IMON keymap is used by only one Kernel driver: drivers/media/rc/imon.c, with supports two different protocols: RC6 and a proprietary one (the driver calls it iMON protocol). The driver actually supports two types of IR key maps, depending on the protocol: if (ictx->rc_type == RC_BIT_RC6_MCE) rdev->map_name = RC_MAP_IMON_MCE; else rdev->map_name = RC_MAP_IMON_PAD; In other words, it uses either the code at: drivers/media/IR/keymaps/rc-imon-pad.c (for the IMON protocol) or drivers/media/rc/keymaps/rc-imon-mce.c (for RC6) I suspect that the user is selecting the wrong keymap on the BZ you mentioned. It should be using: utils/keytable/rc_keymaps/imon_mce if his device came with a RC6 IR. There's another possibility: maybe some newer devices come with a different keymap than the one available when the driver was originally written. That's said, from his report: $ sudo ir-keytable Found /sys/class/rc/rc0/ (/dev/input/event4) with: Driver imon, table rc-imon-pad Supported protocols: other It should be listing both "other" and "RC6" protocols there. It sounds a Kernel regression. I remember one Kernel patch once broke the list of protocols. Maybe the fix patch were not applied on Ubuntu, or maybe some other regression happened. -- Thanks, Mauro -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
