I can not remember it, but somewhere you need to change the permission for your device node On Tue, 2009-04-21 at 20:04 -0700, sparq wrote: > Hi, > > I am a newbie trying to run android on x86 environment. > I have follow the instructions and apply the patch. > Then i succeed running android on the vmware (but still no cursor > support). > > BTW, now I try to add one usb touchscreen device to android. > The linux kernel load the usbtouchscreen driver and add device node > to > /dev/input > > # ls /dev/input/ > event2 > mouse0 > event1 > mice > event0 > > the dmesg message as below: > > <6>[ 1761.592529] usbcore: registered new interface driver > usbtouchscreen > <6>[ 1775.320156] usb 1-1: new full speed USB device using uhci_hcd > and address > 2 > <6>[ 1775.931282] usb 1-1: configuration #1 chosen from 1 choice > <6>[ 1775.999985] input: USB TouchController as /class/input/input2 > <6>[ 1776.002890] input: USB HID v1.00 Pointer [USB TouchController] > on usb-0000:00:07.2-1 > <6>[ 1776.120919] usb 1-2: new full speed USB device using uhci_hcd > and address > 3 > <6>[ 1776.654504] usb 1-2: configuration #1 chosen from 1 choice > <6>[ 1776.662174] hub 1-2:1.0: USB hub found > <6>[ 1777.002898] hub 1-2:1.0: 7 ports detected > > > But the touchscreen is still not available. > Using getevent command, I can get touch event when I touch the screen. > > The message like these: > # getevent > add device 1: /dev/input/event2 > name: "USB TouchController" > could not get driver version for /dev/input/mouse0, Not a typewriter > add device 2: /dev/input/event1 > name: "AT Translated Set 2 keyboard" > could not get driver version for /dev/input/mice, Not a typewriter > add device 3: /dev/input/event0 > name: "Power Button (FF)" > /dev/input/event2: 0004 0004 00090001 > /dev/input/event2: 0001 0110 00000001 > /dev/input/event2: 0003 0000 00000536 > /dev/input/event2: 0003 0001 00000968 > /dev/input/event2: 0000 0000 00000000 > /dev/input/event2: 0004 0004 00090001 > /dev/input/event2: 0001 0110 00000000 > /dev/input/event2: 0000 0000 00000000 > > Finally, I ran the logcat and get these message. > > E/EventHub( 1770): could not open /dev/input/mouse0, Permission denied > E/EventHub( 1770): could not open /dev/input/event2, Permission denied > D/dalvikvm( 1770): GC freed 9970 objects / 626256 bytes in 6ms > > The problem looked like that EventHub run open_device function and > encounter > the permission problem. Is it a secure issue? > How do I solve this problem? > > Any help would be greatly appreciated. > > Thank you. > > >
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