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authorLinus Torvalds <torvalds@linux-foundation.org>2013-09-03 22:37:15 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-03 22:37:15 +0400
commit542a086ac72fb193cbc1b996963a572269e57743 (patch)
treeb137c08037cca4ffc8a156a891a01113b3b8edce /drivers/media
parent1d1fdd95df681f0c065d90ffaafa215a0e8825e2 (diff)
parent1eeeef153c02f5856ec109fa532eb5f31c39f85c (diff)
downloadlinux-542a086ac72fb193cbc1b996963a572269e57743.tar.xz
Merge tag 'driver-core-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core patches from Greg KH: "Here's the big driver core pull request for 3.12-rc1. Lots of tiny changes here fixing up the way sysfs attributes are created, to try to make drivers simpler, and fix a whole class race conditions with creations of device attributes after the device was announced to userspace. All the various pieces are acked by the different subsystem maintainers" * tag 'driver-core-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (119 commits) firmware loader: fix pending_fw_head list corruption drivers/base/memory.c: introduce help macro to_memory_block dynamic debug: line queries failing due to uninitialized local variable sysfs: sysfs_create_groups returns a value. debugfs: provide debugfs_create_x64() when disabled rbd: convert bus code to use bus_groups firmware: dcdbas: use binary attribute groups sysfs: add sysfs_create/remove_groups for when SYSFS is not enabled driver core: add #include <linux/sysfs.h> to core files. HID: convert bus code to use dev_groups Input: serio: convert bus code to use drv_groups Input: gameport: convert bus code to use drv_groups driver core: firmware: use __ATTR_RW() driver core: core: use DEVICE_ATTR_RO driver core: bus: use DRIVER_ATTR_WO() driver core: create write-only attribute macros for devices and drivers sysfs: create __ATTR_WO() driver-core: platform: convert bus code to use dev_groups workqueue: convert bus code to use dev_groups MEI: convert bus code to use dev_groups ...
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/v4l2-core/v4l2-dev.c30
1 files changed, 17 insertions, 13 deletions
diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c
index c8859d6ff6ad..b0f49b014bc5 100644
--- a/drivers/media/v4l2-core/v4l2-dev.c
+++ b/drivers/media/v4l2-core/v4l2-dev.c
@@ -38,24 +38,25 @@
* sysfs stuff
*/
-static ssize_t show_index(struct device *cd,
- struct device_attribute *attr, char *buf)
+static ssize_t index_show(struct device *cd,
+ struct device_attribute *attr, char *buf)
{
struct video_device *vdev = to_video_device(cd);
return sprintf(buf, "%i\n", vdev->index);
}
+static DEVICE_ATTR_RO(index);
-static ssize_t show_debug(struct device *cd,
- struct device_attribute *attr, char *buf)
+static ssize_t debug_show(struct device *cd,
+ struct device_attribute *attr, char *buf)
{
struct video_device *vdev = to_video_device(cd);
return sprintf(buf, "%i\n", vdev->debug);
}
-static ssize_t set_debug(struct device *cd, struct device_attribute *attr,
- const char *buf, size_t len)
+static ssize_t debug_store(struct device *cd, struct device_attribute *attr,
+ const char *buf, size_t len)
{
struct video_device *vdev = to_video_device(cd);
int res = 0;
@@ -68,21 +69,24 @@ static ssize_t set_debug(struct device *cd, struct device_attribute *attr,
vdev->debug = value;
return len;
}
+static DEVICE_ATTR_RW(debug);
-static ssize_t show_name(struct device *cd,
+static ssize_t name_show(struct device *cd,
struct device_attribute *attr, char *buf)
{
struct video_device *vdev = to_video_device(cd);
return sprintf(buf, "%.*s\n", (int)sizeof(vdev->name), vdev->name);
}
+static DEVICE_ATTR_RO(name);
-static struct device_attribute video_device_attrs[] = {
- __ATTR(name, S_IRUGO, show_name, NULL),
- __ATTR(debug, 0644, show_debug, set_debug),
- __ATTR(index, S_IRUGO, show_index, NULL),
- __ATTR_NULL
+static struct attribute *video_device_attrs[] = {
+ &dev_attr_name.attr,
+ &dev_attr_debug.attr,
+ &dev_attr_index.attr,
+ NULL,
};
+ATTRIBUTE_GROUPS(video_device);
/*
* Active devices
@@ -217,7 +221,7 @@ static void v4l2_device_release(struct device *cd)
static struct class video_class = {
.name = VIDEO_NAME,
- .dev_attrs = video_device_attrs,
+ .dev_groups = video_device_groups,
};
struct video_device *video_devdata(struct file *file)