← Back to team overview

multi-touch-dev team mailing list archive

Re: questions on touch driver.


On 06/20/2011 03:23 PM, Austin Zhang wrote:
> hi, team,
> I have several questions on touch action.
> 1 For hid touch panel, what's the difference between Logical
> Maximum/Minimum and Physical Maximum/Minimum for Direction-X and Y? In
> driver, we in fact only use logical ones, right?
> 2 For touch panel, if it is hid type panel, then can we only let its
> parent class/subsystem enable autosuspend, don't need do anything in
> touch driver?
> 3 When setting fuzz parameter by input_set_abs_params, what is the
> typical value in general? Seemed almost no driver is using this param,
> so it is one in-case paras to leave to user space for 'tuning' only?

Hi Austin,

These questions are all device driver related. I would suggest sending
them to the linux-input mailing list instead because there are many more
developers there who know more about the HID protocol. In particular,
you probably want to CC Benjamin Tissoires <benjamin.tissoires@xxxxxxx>
as he has been working on the hid-multitouch driver.


-- Chase

Follow ups