Dear mailing list,
I have a very specific issue found in a series of notebooks (Gigabyte
T1132N) which I would like to resolve. It seems like the device
enumeration of the USB Host Controller is failing to find the attached
touchscreen. Through windows I got most of the information like the
vendor/product ID (2087 0b03) and host controller where the device is
attached at. The host controller is recognized in linux and all the
attached devices other than the touchscreen work flawlessly. Also the
driver for the specific type of touchscreen exists but the device is
just not found.
To start the enumeration manually I tried creating a module using the
Host Controller API but as I understand modules can only use the USB
Core API. (Compilation didn't work) The USB Core API doesn't support
enumeration.
Using a USB sniffer in windows I received some output that suggests that
the touchscreen might be turned off (power state D2) but I can't figure
out how to influence power states in usb devices in linux.
I am grateful for any remarks or suggestions.
I hope this request is worthy of your time.
If not, may you please point me to someone who has the time and
knowledge to help?
Sincerely,
Gerhard Thomas
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