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[media] zl10353: change .read_snr() to report SNR as a 0.1 dB
authorAntti Palosaari <crope@iki.fi>
Tue, 15 May 2012 22:48:40 +0000 (19:48 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Sun, 20 May 2012 15:19:36 +0000 (12:19 -0300)
Report SNR in 0.1 dB scale instead of raw hardware register values.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/dvb/frontends/zl10353.c patch | blob | blame | history

diff --git a/drivers/media/dvb/frontends/zl10353.c b/drivers/media/dvb/frontends/zl10353.c
index 4de3691610bc7ff2bd38cd0b55d371ff72968e0c..82946cd517f54c35a4539ecf2edd721f3d93e204 100644 (file)
--- a/drivers/media/dvb/frontends/zl10353.c
+++ b/drivers/media/dvb/frontends/zl10353.c
@@ -525,7 +525,7 @@ static int zl10353_read_snr(struct dvb_frontend *fe, u16 *snr)
                zl10353_dump_regs(fe);
 
        _snr = zl10353_read_register(state, SNR);
-       *snr = (_snr << 8) | _snr;
+       *snr = 10 * _snr / 8;
 
        return 0;
 }