Hi Cedric, If I understand correctly, your device is an eGalax one with a Wacom VendorID... ;-) I assume that you're the first of a long list that will encounter this kind of problem: Now, hid (the generic hid input layer) can detect if your device is a multitouch one (by relying on the ContactID field in the report descriptor), and it will release it if it's detected. The counter part of this autodetection (in hid-multitouch) has not been judged as enough mature to be included in the kernel, and hid-multitouch can't handle your device automatically. That's why you don't see any event* unless you add the VID:PID in hid-multitouch. I'm currently working on a solution to allow end-user to test more efficiently their device with hid-multitouch. If you want to be my guinea pig, it would help me. Cheers, Benjamin On Wed, Nov 16, 2011 at 10:50, Cedric Sodhi <manday@xxxxxxx> wrote: > Hello everyone, > > the context for this problem is getting the eGalax USB Touchscreen, ID > 056a:0090, to work as such, as it is discussed on the linuxwacom-devel > list (see [1]). > > Quickly summarized: > > Adding the device as USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH5, in line with > the ..._MULTITOUCH[1-4], succeeds in thus far, as that it appears as a > HID Touchscreen. However, as of 3.1.x, clicking, id est touching "jams" > as in the click is never released. > > Updating to 3.2.x-torvalds' kernel should have resolved that jamming, > but instead no clicks or releases are recognized at all. > > The real problem with debugging that, though, is that > > /sys/kernel/debug/hid/<eGalax>/events > > remains dead, in any kernel, 3.1.x-gentoo, 3.1.x-vanilla and > 3.2.x-torvalds alike. > > I hope that you may have an idea as for any of the problems, especially > why there appears no output on the ./events node (the according node for > my keyboard reports events just fine). > > Pasted is .config [2] for 3.2.x-torvalds and ./hid/<eGalax>/rdesc [3] on > 3.2.x-torvalds. > > [1] > http://sourceforge.net/mailarchive/forum.php?thread_name=CAGzDe_Y2cSMxVPm-rcNSrMsew2V5Y0vbVyhXJBFCKraq7EaZ8g@xxxxxxxxxxxxxx&forum_name=linuxwacom-devel > [2] http://paste.pocoo.org/show/508548/ > [3] http://paste.pocoo.org/show/508550/ > -- > To unsubscribe from this list: send the line "unsubscribe linux-input" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
