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usbtouchscreen: fix data reading for ITM touchscreens

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ITM devices seem to report only garbage when not touched. update usbtouchscreen
to do data reading like itmtouch. also fix wrong mask on pressure bits.

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Daniel Ritz 2006-10-11 23:40:22 +02:00 committed by Greg Kroah-Hartman
parent 9ab99c8c51
commit 5dfb5f1d06
1 changed files with 2 additions and 2 deletions
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4
drivers/usb/input/usbtouchscreen.c
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@ -256,10 +256,10 @@ static int itm_read_data(unsigned char *pkt, int *x, int *y, int *touch, int *pr
{
*x = ((pkt[0] & 0x1F) << 7) | (pkt[3] & 0x7F);
*y = ((pkt[1] & 0x1F) << 7) | (pkt[4] & 0x7F);
*press = ((pkt[2] & 0x1F) << 7) | (pkt[5] & 0x7F);
*press = ((pkt[2] & 0x01) << 7) | (pkt[5] & 0x7F);
*touch = ~pkt[7] & 0x20;
return 1;
return *touch;
}
#endif