Newest kernel appears to break tap feature - good starting point for kernel development?

Mulyadi Santosa mulyadi.santosa at gmail.com
Sat Feb 4 02:03:05 EST 2012


Hi Reza....

On Sat, Feb 4, 2012 at 05:11, Reza <vivi at mage.me.uk> wrote:
> Hi all,
>
> I'm interested in getting involved in kernel development. I compiled the
> latest kernel and found that it broke the tap feature on my asus x54h
> k54l. I had a look at the way the devices were interpreted and
> /proc/bus/input/devices gave different results. This seems like it may
> be a good starting point but I'm not sure where to go from here or
> whether it's an issue with the kernel. I presume it is as switching back
> to the older kernel fixes the tapping for left click.

Likely you found regression here.

I think the key here is by using git feature called "bisect" to find
out the culprit. This might require repetitive kernel build and re
test. It's kinda trial work, only here you got help from git as the
revision control.

Once you found the commit that introduce the bug, you can either
remove that (of course, without introducing instability) or improve
it.

It all might sound easy, but require patience and time.

-- 
regards,

Mulyadi Santosa
Freelance Linux trainer and consultant

blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com



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