On Tue, Feb 13, 2018 at 3:13 AM, <[email protected]> wrote: > > Hello, > > We are trying to run a web app on BBB via a browser in kiosk mode, and have > ran into a significant CPU load (20% with plain xterm on X11) when using > touchscreen or mouse. Situation gets worse if we actually run a web browser. > > Then we have found using different mice produced different CPU loads, so we > ran evhz which showed 133 Hz for one mouse, 1000 Hz for another, and > 500-1000 Hz for touchscreen. > > For the mice, usbhid.mousepoll option configures the polling interval used > by the usbhid driver/kernel module, and we had successfully set the > intervals for USB mice. > > However, for the TI touchscreen driver, no such configurable option has been > found. > > Is there any way to lower the polling interval, perhaps with a compile time > option?
You could try monkey-ing with the clock dividers: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/mfd/ti_am335x_tscadc.c#n213 Regards -- Robert Nelson https://rcn-ee.com/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAOCHtYgSmeF5HNv%2BYizP%3Dh9GPt4ZiShO5Tb35NzZinOpUA_6Wg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
