On Thursday, August 25, 2011 12:23 AM, Henrik Rydberg wrote: >> It looks like these are the current I2C touchscreen drivers in mainline: >> >> CONFIG_TOUCHSCREEN_88PM860X pmic mfd device? probably not standalone >> CONFIG_TOUCHSCREEN_AD7879_I2C datasheet looks simple enough >> CONFIG_TOUCHSCREEN_ATMEL_MXT needs firmware? probably complicated >> CONFIG_TOUCHSCREEN_BU21013 can't find a datasheet >> CONFIG_TOUCHSCREEN_CY8CTMG110 looks like the chip may be obsolete >> CONFIG_TOUCHSCREEN_MAX11801 Maxim usually has long lead times >> CONFIG_TOUCHSCREEN_MCS5000 can't find a datasheet >> CONFIG_TOUCHSCREEN_STMPE datasheet looks simple enough >> CONFIG_TOUCHSCREEN_TSC2007 datasheet looks simple enough >> >> Based on that I'm considering the Analog Devices, STMicro, and TI parts. >> >> Do you know if any of these work better than the others? > > Out of those, bu21013 (and st1232 not on your list) are dual touch, > and atmel_mxt is true multitouch. The rest are single touch. Henrik, Thanks for the info and pointing out the st1232 driver. Do you know of a link to a datasheet for it? So, is the dual/muti-touch feature just a function of the controller? Or do you need a touchscreen that actually supports it? My product is currently using a 5.7" color TFT-LCD from OSD Displays. They have a version with a built in 4 wire resistance type touchscreen (p/n OSD057VA01CT). I haven't used a touchscreen before so I don't know any of the details on how they work, but with the 4 wire interface (YU, XR, YD, XL) I don't see how you could read more than one touch. Thanks for any information. Regards, Hartley-- 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
