Take two. I added some logic to prevent statistic queries in case demodulator is clearly in state statistic query is invalid. Currently there could be checks in device driver but usually not. Gar bage is usually returned and in some cases even I/O errors are generated as demod is put sleep and cannot answer any request.
I changed error code EPERM to EAGAIN. What I looked existing demodulator drivers there was multiple error codes used. EAGAIN was one, at least DRX-K uses it. Also documentation is updated according to new situation. Antti Palosaari (5): dvb_frontend: use Kernel dev_* logging dvb_frontend: return -ENOTTY for unimplement IOCTL dvb_frontend: do not allow statistic IOCTLs when sleeping DocBook: update ioctl error codes EAGAIN, ENOSYS, EOPNOTSUPP rtl2832: remove dummy callback implementations Documentation/DocBook/media/v4l/gen-errors.xml | 12 +- drivers/media/dvb-core/dvb_frontend.c | 266 +++++++++++++------------ drivers/media/dvb-frontends/rtl2832.c | 29 --- 3 files changed, 151 insertions(+), 156 deletions(-) -- 1.7.11.2 -- 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
