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

Question asked by Scott Gerenser on Aug 7, 2014

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?

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