On Tue, Nov 17, 2009 at 12:00:08PM +0900, Joonyoung Shim wrote: > On 11/17/2009 2:12 AM, Dmitry Torokhov wrote: > > Hi Joonyoung, > > > > On Mon, Nov 16, 2009 at 10:53:18AM +0900, Joonyoung Shim wrote: > >> Hi, all. > >> > >> I have a question about touchscreen resolution. My touchscreen device > >> can report the position from 0 to 1023 of x and y coordinates, so i > >> setted the absmax of input device to 1023. BTW, i only can get from 0 to > >> 479 x position and to 799 y position because the LCD resolution of the > >> target is 480 x 800. I wonder which value is setted to the absmax - 479 > >> and 799 or 1023. > > > > I believe driver should, by default, set absmin and absmax to match the > > limits of the hardware/protocol. In your case it would be 1023. The > > driver may choose to accept additional infromation from platform data, if > > present, you can also adjust absmin/absmax etc via ioctl durng the > > bootup sequence. > > Hmm, i get the resolution information from platform data, so i can > set absmax values from platform data. Is it ok? > Sure, if there is only one possible configuration for the device on a given platform - yes. -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
