Hello,
To support this you need to enable generic driver i.e HID Multitouch in
kernel and following change need in files.
1:drivers/hid/hid-multitouch.c
Add driver data for your Display panel.
2:Add your Product Vendor & product-id.
drivers/hid/hid-ids.h
3:Also add logic into hid_have_special_driver[].
Regards
Sanjeev Sharma
On Tue, Sep 17, 2013 at 11:41 PM, Tergiver
<douglas.peterson....@gmail.com>wrote:
> I'm working with a BSP from Congatec which uses a Freescale Linux kernel
> (linux-2.6-imx). The touchscreen comes from Fortrend, but it reports itself
> as an Advanced Silicon CoolTouch (Vendor ID 0x2619, Device ID 0x5610).
>
> What does work:
>
> When you plug the touchscreen into a USB port, the usbhid driver is
> connecting it to the Linux event system. I can see the device listed in
> /proc/sys/input/devices and getevent shows me the events it supports and I
> can monitor live events from it.
>
> However, the touchscreen has no effect on the Android interface at all
> (for example running the pointer location tool).
>
> In my extensive google searching I've come across some solutions, none of
> which works. For example it is suggested that the device needs to be
> handled by the hid-multitouch driver.
>
> What I did was to add this device to the hid_device_id list using
> MT_CLS_DEFAULT. I also modified the hid-multitouch driver so that it prints
> during driver init and probe functions. The probe function is never called.
>
> I found more information suggesting that the usbhid driver needs to ignore
> that device for the hid-multitouch driver to see it. So I've built both
> drivers to be modules which lets me start the drivers like so:
>
> insmod /system/lib/modules/usbhid.ko quirks=0x2619:0x5610:0x4
> insmod /system/lib/modules/hid-multitouch.ko
>
> The usbhid driver does now ignore the touchscreen when you plug it in, but
> again the hid-multitouch driver's probe function is not called.
>
> I've quadruple-checked that the vendor ID and device ID are correct in my
> hid-multitouch driver changes.
>
> // hid-ids.h#define USB_VENDOR_ID_ADVANCEDSILICONSA 0x2619#define
> USB_DEVICE_ID_ADVANCEDSILICONSA_5610 0x5610
> // hid-multitouch.c/* Advanced Silicon panels */{ .driver_data =
> MT_CLS_DEFAULT,
> HID_USB_DEVICE(USB_VENDOR_ID_ADVANCEDSILICONSA,
> USB_DEVICE_ID_ADVANCEDSILICONSA_5610) },
>
> Where do I go from here?
>
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