Re: [PATCH] HID: magicmouse: Implement Multi-touch Protocol B (MT-B)

[Henrik Rydberg]

On Thu, Jun 28, 2012 at 03:54:31PM -0400, Yufeng Shen wrote:
> The driver for Apple Magic Trackpad/Mouse currently uses
> Multi-touch Protocol A (MT-A) to report touch events and uses
> ABS_MT_TRACKING_ID to do finger tracking. The fact of the device
> being able to track individual finger makes it possible to
> report touch events using MT-B. This patch adds the support
> for the driver to report MT-B and makes it configurable through
> module parameter so that existing codes that are relying on its
> MT-A implemtation don't get affected.

Are there any such codes? Most systems, if not all, seem to use mtdev,
which can handle both protocols. I do not think a parameter switch is
a good idea. Switching to MT-B or leaving things as is look like the
viable options.

Thanks,
Henrik
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/