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authorHans Verkuil <hverkuil@xs4all.nl>2010-12-25 05:46:56 -0500
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-12-29 05:17:09 -0500
commit439105b122dfa21fbce7201d0f30b5eeac95c918 (patch)
tree11eb00fde0b290b3609f8c9f26d3afca9fcaa0ca /Documentation
parent39c3d488452ae206cfc8afda0db041ee55d01c3c (diff)
[media] feature-removal: update V4L1 removal status
While the V4L1 compatibility module has been removed, we still have two V4L1 drivers that prevent full V4L1 removal. Those drivers have been moved to staging and will be removed in 2.6.39, together with the last V4L1 support. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/feature-removal-schedule.txt24
1 files changed, 11 insertions, 13 deletions
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 6c2f55e05f13..d66ed2bdf8f1 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -98,35 +98,33 @@ Who: Pavel Machek <pavel@ucw.cz>
98--------------------------- 98---------------------------
99 99
100What: Video4Linux API 1 ioctls and from Video devices. 100What: Video4Linux API 1 ioctls and from Video devices.
101When: kernel 2.6.38 101When: kernel 2.6.39
102Files: include/linux/videodev.h 102Files: include/linux/videodev.h
103Check: include/linux/videodev.h 103Check: include/linux/videodev.h
104Why: V4L1 AP1 was replaced by V4L2 API during migration from 2.4 to 2.6 104Why: V4L1 AP1 was replaced by V4L2 API during migration from 2.4 to 2.6
105 series. The old API have lots of drawbacks and don't provide enough 105 series. The old API have lots of drawbacks and don't provide enough
106 means to work with all video and audio standards. The newer API is 106 means to work with all video and audio standards. The newer API is
107 already available on the main drivers and should be used instead. 107 already available on the main drivers and should be used instead.
108 Newer drivers should use v4l_compat_translate_ioctl function to handle 108
109 old calls, replacing to newer ones. 109 The userspace libv4l1 library can convert V4L1 calls to V4L2. This
110 Decoder iocts are using internally to allow video drivers to 110 replaces the kernel V4L1 compatibility module which was removed in
111 communicate with video decoders. This should also be improved to allow 111 2.6.38. The last V4L1 drivers will either be converted to V4L2 or
112 V4L2 calls being translated into compatible internal ioctls. 112 removed for 2.6.39 at which point the V4L1 API will cease to exist.
113 Compatibility ioctls will be provided, for a while, via
114 v4l1-compat module.
115Who: Mauro Carvalho Chehab <mchehab@infradead.org> 113Who: Mauro Carvalho Chehab <mchehab@infradead.org>
116 114
117--------------------------- 115---------------------------
118 116
119What: Video4Linux obsolete drivers using V4L1 API 117What: Video4Linux obsolete drivers using V4L1 API
120When: kernel 2.6.38 118When: kernel 2.6.39
121Files: drivers/staging/cpia/* drivers/staging/stradis/* 119Files: drivers/staging/se401/* drivers/staging/usbvideo/*
122Check: drivers/staging/cpia/cpia.c drivers/staging/stradis/stradis.c 120Check: drivers/staging/se401/se401.c drivers/staging/usbvideo/usbvideo.c
123Why: There are some drivers still using V4L1 API, despite all efforts we've done 121Why: There are some drivers still using V4L1 API, despite all efforts we've done
124 to migrate. Those drivers are for obsolete hardware that the old maintainer 122 to migrate. Those drivers are for obsolete hardware that the old maintainer
125 didn't care (or not have the hardware anymore), and that no other developer 123 didn't care (or not have the hardware anymore), and that no other developer
126 could find any hardware to buy. They probably have no practical usage today, 124 could find any hardware to buy. They probably have no practical usage today,
127 and people with such old hardware could probably keep using an older version 125 and people with such old hardware could probably keep using an older version
128 of the kernel. Those drivers will be moved to staging on 2.6.37 and, if nobody 126 of the kernel. Those drivers will be moved to staging on 2.6.38 and, if nobody
129 care enough to port and test them with V4L2 API, they'll be removed on 2.6.38. 127 cares enough to port and test them with V4L2 API, they'll be removed on 2.6.39.
130Who: Mauro Carvalho Chehab <mchehab@infradead.org> 128Who: Mauro Carvalho Chehab <mchehab@infradead.org>
131 129
132--------------------------- 130---------------------------