Good morning,
DVB USB changes I have been working are now ready at my point of view.
All changes are here:
http://git.linuxtv.org/anttip/media_tree.git/shortlog/refs/heads/dvb-usb
And here is some numbers I just took, in order first old version then
new. I converted those 6 drivers (af9015, af9035, anysee, au6610,
ce6230, ec168) during the development in order to see results and test
functionality.
text data bss dec hex filename
15656 600 12 16268 3f8c 2012-06-21/dvb-usb.ko
14212 2880 8 17100 42cc 2012-06-21/dvb_usbv2.ko
14878 13232 40 28150 6df6 2012-05-22/dvb-usb-af9015.ko
16740 1312 8 18060 468c 2012-06-21/dvb-usb-af9015.ko
9917 9768 4 19689 4ce9 2012-05-22/dvb-usb-af9035.ko
9236 1848 0 11084 2b4c 2012-06-21/dvb-usb-af9035.ko
9756 5072 8 14836 39f4 2012-05-22/dvb-usb-anysee.ko
9800 1552 4 11356 2c5c 2012-06-21/dvb-usb-anysee.ko
1932 4688 4 6624 19e0 2012-05-22/dvb-usb-au6610.ko
1763 1184 0 2947 b83 2012-06-21/dvb-usb-au6610.ko
2917 4736 4 7657 1de9 2012-05-22/dvb-usb-ce6230.ko
2763 1416 0 4179 1053 2012-06-21/dvb-usb-ce6230.ko
3659 4784 4 8447 20ff 2012-05-22/dvb-usb-ec168.ko
3607 1584 0 5191 1447 2012-06-21/dvb-usb-ec168.ko
Lines of code:
af9015 2084 => 1591
af9035 1355 => 1194
anysee 1738 => 1680
au6610 291 => 238
ce6230 393 => 348
ec168 508 => 439
It was a little bit surprise new DVB USB is still few bytes larger than
old, but likely it is coming from new functionality and debugs. Legacy
remote and Cypress firmware download routines are functionality dropped
out. Otherwise just some feature additions, many bug fixes and rather
largely changed functionality. I tried to keep it close old as much as
possible like naming but still did not keep backward compatibility in
order to make it clean and small. So it should not consider as 1:1
replacement, not even possible to convert old drivers without having a
hardware in hands.
It implements all new features I planned. Suspend/resume is not 100%
ready as it needs some work for DVB-core. It just kills streaming when
suspend to make it happen even when streaming, but does not handle power
management which needs to be done in DVB-core.
Also all bugs I was aware should be fixed. For example deferred firmware
downloading (interoperability issue between DVB USB driver and udev),
locking to sync frontend control and frontend streaming as there was
race condition (aka bug "dvb-usb: error while stopping stream.").
Feel free to comment, lets try to fix if there is new findings or small
feature addons.
regards
Antti
--
http://palosaari.fi/
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