@@ -655,12 +655,12 @@ int em28xx_capture_start(struct em28xx *dev, int start)
rc = em28xx_write_reg_bits(dev,
EM2874_R5F_TS_ENABLE,
start ? EM2874_TS1_CAPTURE_ENABLE : 0x00,
- EM2874_TS1_CAPTURE_ENABLE);
+ EM2874_TS1_CAPTURE_ENABLE | EM2874_TS1_FILTER_ENABLE | EM2874_TS1_NULL_DISCARD);
else
rc = em28xx_write_reg_bits(dev,
EM2874_R5F_TS_ENABLE,
start ? EM2874_TS2_CAPTURE_ENABLE : 0x00,
- EM2874_TS2_CAPTURE_ENABLE);
+ EM2874_TS2_CAPTURE_ENABLE | EM2874_TS2_FILTER_ENABLE | EM2874_TS2_NULL_DISCARD);
} else {
/* FIXME: which is the best order? */
/* video registers are sampled by VREF */
The em28xx driver never touched the EM2874 register bits that control the transport stream packet filters, leaving them at whatever default the firmware has set. E.g. the Pinnacle 290e disables them by default, while the Hauppauge WinTV dualHD enables discarding NULL packets by default. However, some applications require NULL packets, e.g. to determine the load in DOCSIS segments, so discarding NULL packets is undesired for such applications. This patch simply extends the bit mask when starting or stopping the transport stream packet capture, so that the filter bits are cleared. It has been verified that this makes the Hauppauge WinTV dualHD pass an unfiltered DVB-C stream including NULL packets, which it didn't before. Signed-off-by: Robert Schlabbach <Robert.Schlabbach@gmx.net> --- drivers/media/usb/em28xx/em28xx-core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)