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authorHauke Mehrtens <hauke@hauke-m.de>2013-09-18 23:16:20 +0200
committerHauke Mehrtens <hauke@hauke-m.de>2013-10-21 23:58:37 +0200
commit681eaefd53a809e6e7a407aec789b22f767f299e (patch)
tree2b8e676b2ce49d614041c7826e452ac4c38cceba /backport
parent8ea0797f0f768945e323a342c60e79ab3d9ec6f5 (diff)
backports: add DEVICE_ATTR_RW
This is used by drivers/media/v4l2-core/v4l2-dev.c. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Diffstat (limited to 'backport')
-rw-r--r--backport/backport-include/linux/device.h2
-rw-r--r--backport/backport-include/linux/sysfs.h5
2 files changed, 7 insertions, 0 deletions
diff --git a/backport/backport-include/linux/device.h b/backport/backport-include/linux/device.h
index 8f080cc9..2244c626 100644
--- a/backport/backport-include/linux/device.h
+++ b/backport/backport-include/linux/device.h
@@ -192,6 +192,8 @@ backport_device_release_driver(struct device *dev)
#if LINUX_VERSION_CODE < KERNEL_VERSION(3,11,0)
#define DEVICE_ATTR_RO(_name) \
struct device_attribute dev_attr_ ## _name = __ATTR_RO(_name);
+#define DEVICE_ATTR_RW(_name) \
+struct device_attribute dev_attr_ ## _name = __ATTR_RW(_name)
#define ATTRIBUTE_GROUPS(_name) \
static struct BP_ATTR_GRP_STRUCT _name##_dev_attrs[ARRAY_SIZE(_name##_attrs)];\
diff --git a/backport/backport-include/linux/sysfs.h b/backport/backport-include/linux/sysfs.h
index a2ef73f1..13bab43a 100644
--- a/backport/backport-include/linux/sysfs.h
+++ b/backport/backport-include/linux/sysfs.h
@@ -31,4 +31,9 @@ do { \
#endif
#endif
+#ifndef __ATTR_RW
+#define __ATTR_RW(_name) __ATTR(_name, (S_IWUSR | S_IRUGO), \
+ _name##_show, _name##_store)
+#endif
+
#endif /* __BACKPORT_LINUX_SYSFS_H */