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authorBrad Love <brad@nextdimension.cc>2018-04-02 15:59:01 -0400
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2018-04-04 06:27:28 -0400
commit8b1ca8a0363efdfa63358f598a2cadda2e514ab7 (patch)
tree699c6ead8ffbeef95c36360596756b0376931c79 /drivers/media
parent639fa43d59e5a41ca8c55592cd5c1021fea2ab83 (diff)
media: cx231xx: Increase USB bridge bandwidth
The cx231xx USB bridge has issue streaming QAM256 DVB-C channels. QAM64 channels were fine, but QAM256 channels produced corrupted transport streams. cx231xx alt mode 4 does not provide enough bandwidth to acommodate QAM256 DVB-C channels, most likely DVB-T2 channels would break up as well. Alt mode 5 increases bridge bandwidth to 90Mbps, and fixes QAM256 DVB-C streaming. Signed-off-by: Brad Love <brad@nextdimension.cc> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/usb/cx231xx/cx231xx-dvb.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/usb/cx231xx/cx231xx-dvb.c b/drivers/media/usb/cx231xx/cx231xx-dvb.c
index 713029420fcf..67ed66712d05 100644
--- a/drivers/media/usb/cx231xx/cx231xx-dvb.c
+++ b/drivers/media/usb/cx231xx/cx231xx-dvb.c
@@ -276,7 +276,7 @@ static int start_streaming(struct cx231xx_dvb *dvb)
if (dev->USE_ISO) {
dev_dbg(dev->dev, "DVB transfer mode is ISO.\n");
- cx231xx_set_alt_setting(dev, INDEX_TS1, 4);
+ cx231xx_set_alt_setting(dev, INDEX_TS1, 5);
rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
if (rc < 0)
return rc;