[haiku-bugs] Re: [Haiku] #8338: Touch screen doesn't work on Acer W500
- From: "anevilyak" <trac@xxxxxxxxxxxx>
- Date: Sun, 19 Feb 2012 21:07:42 -0000
#8338: Touch screen doesn't work on Acer W500
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Reporter: lxstoian | Owner: nobody
Type: enhancement | Status: new
Priority: normal | Milestone: R1
Component: Drivers | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: x86
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Comment (by anevilyak):
Replying to [comment:1 Bouncer]:
> Haiku did at one time have some support for touch screens.
Going off of ticket #7481 that was a work-in-progress patch that was never
yet committed, so that's not really the case.
> I believe we lost the support sometime last summer when mmlr
> rewrote Haiku's USB HID software.
> Perhaps he just left off some drivers, or didn't have time to modify
them.
The whole point of proper HID support is precisely that you don't need
specialized drivers for everything, the HID spec provides detailed enough
descriptors to be able to handle any kind of input device. However, quite
a few vendors are idiots and flag their devices as type 0xff (vendor-
specific), which results in you having no choice but to use their drivers
because it can't be determined that they are in fact HID devices.
Furthermore, it's not even clear that it's a USB device at all in this
particular case, at least their web page doesn't clarify that. As such,
it's not out of the realm of possibility for it to be exporting itself on
the PS/2 bus. The output of listusb -v on the system in question would be
required to determine that.
--
Ticket URL: <http://dev.haiku-os.org/ticket/8338#comment:2>
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