USB Multitouch Panel on i.MX6 (Sabre Lite) board

sgerenser — Thu, 07 Aug 2014 20:30:53 GMT

Has anyone been able to get a USB multitouch screen or screen overlay working on an i.MX6? I'm using the Sabre Lite board (BD-SL-i.MX6) from Boundary Devices, running a Yocto Daisy build with the 3.10.17 kernel. The screen I have happens to be a "USBest Technology SiS HID Touch Controller." It implements the HID-multitouch standard, and it shows up and works fine on a standard x86 PC with a recent version of Ubuntu (so I know the screen fundamentally works with Linux and the HID-multitouch driver).

When I build the kernel and enable the HID-Multitouch kernel module, plugging in the panel just gives me a repeated output over and over in dmesg like this:

usb 1-1.2: new full-speed USB device number 58 using ci_hdrc
usb 1-1.2: not running at top speed; connect to a high speed hub
input: USBest Technology SiS HID Touch Controller as /devices/soc0/soc.1/2100000.aips-bus/2184200.usb/ci_hdrc.1/usb1/1-1/1-1.2/1-1.2:1.0/input/input553
hid-multitouch 0003:0457:0817.0229: input: USB HID v1.00 Mouse [USBest Technology SiS HID Touch Controller] on usb-ci_hdrc.1-1.2/input0
usb 1-1.2: USB disconnect, device number 58
usb 1-1.2: new full-speed USB device number 59 using ci_hdrc
usb 1-1.2: not running at top speed; connect to a high speed hub
input: USBest Technology SiS HID Touch Controller as /devices/soc0/soc.1/2100000.aips-bus/2184200.usb/ci_hdrc.1/usb1/1-1/1-1.2/1-1.2:1.0/input/input554
hid-multitouch 0003:0457:0817.022A: input: USB HID v1.00 Mouse [USBest Technology SiS HID Touch Controller] on usb-ci_hdrc.1-1.2/input0
usb 1-1.2: USB disconnect, device number 59

Basically, it looks like the device is being found by the HID-multitouch driver, but for some reason it keeps disconnecting it immediately after, then trying again, over and over again. Any ideas?

i.MX ProcessorsのトピックUSB Multitouch Panel on i.MX6 (Sabre Lite) board

USB Multitouch Panel on i.MX6 (Sabre Lite) board