Commit aac49c34 authored by H Hartley Sweeten's avatar H Hartley Sweeten Committed by Greg Kroah-Hartman
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staging: comedi: rti800: swap val and mask when reading ai data 



The (mask & val) operation when reading the high 4-bits of the analog
data looks strange. Change it to (val & mask).

Signed-off-by: default avatarH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c7c1161d

drivers/staging/comedi/drivers/rti800.c

+1 −1
Original line number Diff line number Diff line
@@ -217,7 +217,7 @@ static int rti800_ai_insn_read(struct comedi_device *dev, 
			return ret;



		data[i] = inb(dev->iobase + RTI800_ADCLO);

		data[i] |= (0xf & inb(dev->iobase + RTI800_ADCHI)) << 8;

		data[i] |= (inb(dev->iobase + RTI800_ADCHI) & 0xf) << 8;



		if (devpriv->adc_2comp)

			data[i] ^= 0x800;