Hello all, I have written a simple application to capture RF QAM transport streams with the Hauppauge 950Q, and save to a file. This is essentially the same as dvbstream, but with unnecessary stuff removed (and I have verified this bug using dvbstream as well): - tune using frontend device - demux device: DMX_SET_PES_FILTER on pid 8192 with DMX_OUT_TS_TAP output. - Read from dvr device, save to file. - Interrupt app using alarm() and stop pes filter, close devices.
This works as expected. The problem is after running this a bunch of times (sometimes 15-20+), the device seems to eventually get into a bad state, and nothing is available to read on the dvr device. The lockup never seems to happen while reading data (i.e., either data comes and the app works completely, or the app reads 0 bytes). When this happens, all the tuning/demod locks look good, and everything appears to be working -- there just isn't data ready to read from the dvr device. When it gets into a bad state, I have to physically remove/reinsert the 950Q device or otherwise reset the device (e.g., usb reset - USBDEVFS_RESET ioctl). Has anyone seen this issue before? I am running Fedora 19 with 3.13.9 kernel. Hardware is: - au0828, au8522, xc5000 (with dvb-fe-xc5000c-4.1.30.7.fw) Thanks, -Trevor -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
