Jonathan Cameron wrote on 2011-09-23: > It is a bit mask whereas current code treats it as a straight value. That's a NAK. See MODE 2 - COMMAND MODE: Table 26. Address Pointer Byte. On the AD7998 and AD7997 the channel is a straight value and not a mask. > > Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxx> > --- > drivers/staging/iio/adc/ad799x_core.c | 3 ++- > 1 files changed, 2 insertions(+), 1 deletions(-) > diff --git a/drivers/staging/iio/adc/ad799x_core.c > b/drivers/staging/iio/adc/ad799x_core.c index 975a3f7..3b5f8be 100644 > --- a/drivers/staging/iio/adc/ad799x_core.c +++ > b/drivers/staging/iio/adc/ad799x_core.c @@ -123,7 +123,8 @@ static int > ad799x_scan_direct(struct ad799x_state *st, unsigned ch) > break; > case ad7997: > case ad7998: > - cmd = (ch << AD799X_CHANNEL_SHIFT) | AD7997_8_READ_SINGLE; > + cmd = ((1 << ch) << AD799X_CHANNEL_SHIFT) | > + AD7997_8_READ_SINGLE; > break; > default: > return -EINVAL; Greetings, Michael -- Analog Devices GmbH Wilhelm-Wagenfeld-Str. 6 80807 Muenchen Sitz der Gesellschaft: Muenchen; Registergericht: Muenchen HRB 40368; Geschaeftsfuehrer:Dr.Carsten Suckrow, Thomas Wessel, William A. Martin, Margaret Seif -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html