Re: [PATCH] Input - wacom: update the ABI doc according to latest changes

From: Przemo Firszt
Date: Tue Aug 05 2014 - 11:53:44 EST



Quoting Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>:

Now the devices show up under hid no matter the connection. So update the
sysfs path to the shortest and common one.
The ABI has also been unified regarding the OLEDs, but Bluetooth handle
only 1-bit images instead of 4.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
---

Guys,

by updating this and working on the g-s-d client side for OLEDs, I think now
that we should also keep the oled*_img for Bluetooth and implement this file
for USB too. The user space code gets messy quite fast due to the need to
support old and new kernels, whereas if we handle the scrambling in the kernel,
it should be quite straightforward.
Of course, we have to keep the current button<n>_rawimg for backward
compatibility.
[..]
Hi Benjamin,
For whatever it's worth, you have my vote for scrambling for usb/bt in the kernel.
I'm not sure about requirement for backward compatibility (the user space will
be broken anyway).

I proposed it a while ago [1]

[1] http://www.gossamer-threads.com/lists/linux/kernel/1593583

Regards,
Przemo Firszt

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