Hi Andrey, On 01/03/2016 02:41 AM, Andrey Utkin wrote: > (Disclaimer up to scissors mark) > > Please be so kind to take a look at a new driver. > We aim to follow high standards of kernel development and possibly to get this driver in mainline kernel. > The device is multichannel video and audio capture and compression chip TW5864 of Intersil/Techwell. > > The code is in repo https://github.com/bluecherrydvr/linux , branch "tw5864", subdir drivers/staging/media/tw5864 . > This branch is regularly rebased during development, so that there's a single commit adding this driver on top of current linux-next. > Direct link to subdir: https://github.com/bluecherrydvr/linux/tree/tw5864/drivers/staging/media/tw5864 > > > Implementation status > > * H.264 streaming work stable, including concurrent work of multiple channels on same chip; > * Audio streaming functionality is not implemented, but is considered for future; > * The chip has motion detection capability, but of same sensitivity level for whole frame; this was considered quite limiting for our needs and we have implemented per-grid-cell sensitivity with a bit of heuristic processing of motion vector data exposed by hardware. Datasheet-suggested mechanism is not used currently. > > Testing status > > * Runtime tests on my test machine show that video streaming works stable. Multichannel streaming was working, but I haven't test this with latest revision lately yet. > * Runtime performance will be tested later also on few early-adopters' CCTV machines. > * checkpatch.pl -f on files reports no warnings, errors or style issues; > * checkpatch.pl on patch reports no warnings, errors or style issues; > * sparse reports nothing; > * compilation shows no warnings (gcc 4.9.3); > * compilation with EXTRA_CFLAGS=-W shows a lot of warnings from included headers (over 9000 lines of output). Seems this technique from Documentation/SubmitChecklist is not practical in this case > * Other Documentation/SubmitChecklist advises weren't thoroughly worked out. Did you also test with v4l2-compliance? Before I accept the driver I want to see the output of 'v4l2-compliance' and 'v4l2-compliance -s'. Basically there shouldn't be any failures. I did a quick scan over the source and I saw nothing big. When you post the new version I will go over it more carefully and do a proper review. Regards, Hans _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
