| From | Ben Hutchings <> | Date | Mon, 31 Mar 2014 00:23:35 +0100 | Subject | [PATCH 3.2 177/200] staging: comedi: ssv_dnp: correct insn_bits result |
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3.2.56-rc1 review patch. If anyone has any objections, please let me know.
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From: Ian Abbott <abbotti@mev.co.uk>
[Part of commit f6b316bcd8c421acd6fa5a6e18b4c846ecb9d965 upstream. Split from original patch subject: "staging: comedi: ssv_dnp: use comedi_dio_update_state()"]
Also, fix a bug where the state of the channels is returned in data[0]. The comedi core expects it to be returned in data[1].
Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- drivers/staging/comedi/drivers/ssv_dnp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/staging/comedi/drivers/ssv_dnp.c +++ b/drivers/staging/comedi/drivers/ssv_dnp.c @@ -251,11 +251,11 @@ static int dnp_dio_insn_bits(struct come /* on return, data[1] contains the value of the digital input lines. */ outb(PADR, CSCIR); - data[0] = inb(CSCDR); + data[1] = inb(CSCDR); outb(PBDR, CSCIR); - data[0] += inb(CSCDR) << 8; + data[1] += inb(CSCDR) << 8; outb(PCDR, CSCIR); - data[0] += ((inb(CSCDR) & 0xF0) << 12); + data[1] += ((inb(CSCDR) & 0xF0) << 12); return 2;
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