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| author | Daniel Glöckner <dg@emlix.com> | 2009-03-26 17:31:08 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-03-30 19:43:43 +0400 |
| commit | c01f1a5a241604c35f93f10e06253ca70e88ee4e (patch) | |
| tree | f5eea48a07cd7c08fd9bf34d32babf99d02e973d /include/media | |
| parent | 8737f66e6415e8dbe8c8b26d63692d87a4ad5b29 (diff) | |
| download | linux-c01f1a5a241604c35f93f10e06253ca70e88ee4e.tar.xz | |
V4L/DVB (11242): allow v4l2 drivers to provide a get_unmapped_area handler
Shared memory mappings on nommu machines require a get_unmapped_area
file operation that suggests an address for the mapping. This patch
adds a way for v4l2 drivers to provide this callback.
Signed-off-by: Daniel Glöckner <dg@emlix.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media')
| -rw-r--r-- | include/media/v4l2-dev.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h index e36faab8459b..2058dd45e915 100644 --- a/include/media/v4l2-dev.h +++ b/include/media/v4l2-dev.h @@ -40,6 +40,8 @@ struct v4l2_file_operations { unsigned int (*poll) (struct file *, struct poll_table_struct *); long (*ioctl) (struct file *, unsigned int, unsigned long); long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long); + unsigned long (*get_unmapped_area) (struct file *, unsigned long, + unsigned long, unsigned long, unsigned long); int (*mmap) (struct file *, struct vm_area_struct *); int (*open) (struct file *); int (*release) (struct file *); |