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authorDaniel Glöckner <dg@emlix.com>2009-03-26 11:31:08 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-03-30 12:43:43 -0300
commitc01f1a5a241604c35f93f10e06253ca70e88ee4e (patch)
treef5eea48a07cd7c08fd9bf34d32babf99d02e973d /include/media/v4l2-dev.h
parent8737f66e6415e8dbe8c8b26d63692d87a4ad5b29 (diff)
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/v4l2-dev.h')
-rw-r--r--include/media/v4l2-dev.h2
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 *);