Messages in this thread | | | Date | Wed, 24 Sep 2008 09:04:55 +0200 | From | "Søren Hauberg" <> | Subject | Re: [PATCH] usbtouchscreen, 2.6.25 |
| |
2008/9/23 Oliver Neukum <oliver@neukum.org>: > Am Dienstag 23 September 2008 11:36:06 schrieb Søren Hauberg: >> 2008/9/23 Ondrej Zary <linux@rainbow-software.org>: >> > Calibration is a per-device thing. You can have more than one touchscreen (the >> > swap_xy feature is also wrong, but better than nothing). >> >> Yes, this is true. I'm going to claim (and I have no factual evidence >> to back this claim, I'm just making it up) that almost all touchscreen >> users only have one touchscreen. So, I'd rather have something that >> works for most users, then the current situation. Is it optimal? No! >> Is it practical? I believe so. Using your words, it's "better than >> nothing". > > But is it better than the X driver?
Obviously that depends on how you define "better" :-) The problem I'm facing is that with the X driver there is no way to change calibration without restarting X several times, which isn't acceptable for the application we're developing. Sure, I could fix the X driver to allow run-time changes to the calibration parameters, but that's a very large task. On the other hand, solving the problem in the kernel was dead-easy. So, I agree that solving the problem in-kernel might not be the best possible solution, it's just the only one I actually have the time to implement (and it'll work for most users).
> How do other touchscreens do it?
They seem to do nothing, i.e. let the problem be solved in user space.
Søren -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |