Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (425 commits)
  V4L/DVB (11870): gspca - main: VIDIOC_ENUM_FRAMESIZES ioctl added.
  V4L/DVB (12004): poll method lose race condition
  V4L/DVB (11894): flexcop-pci: dmesg visible names broken
  V4L/DVB (11892): Siano: smsendian - declare function as extern
  V4L/DVB (11891): Siano: smscore - bind the GPIO SMS protocol
  V4L/DVB (11890): Siano: smscore - remove redundant code
  V4L/DVB (11889): Siano: smsdvb - add DVB v3 events
  V4L/DVB (11888): Siano: smsusb - remove redundant ifdef
  V4L/DVB (11887): Siano: smscards - add board (target) events
  V4L/DVB (11886): Siano: smscore - fix some new GPIO definitions names
  V4L/DVB (11885): Siano: Add new GPIO management interface
  V4L/DVB (11884): Siano: smssdio - revert to stand alone module
  V4L/DVB (11883): Siano: cards - add two additional (USB) devices
  V4L/DVB (11824): Siano: smsusb - change exit func debug msg
  V4L/DVB (11823): Siano: smsusb - fix typo in module description
  V4L/DVB (11822): Siano: smscore - bug fix at get_device_mode
  V4L/DVB (11821): Siano: smscore - fix isdb-t firmware name
  V4L/DVB (11820): Siano: smscore - fix byte ordering bug
  V4L/DVB (11819): Siano: smscore - fix get_common_buffer bug
  V4L/DVB (11818): Siano: smscards - assign gpio to HPG targets
  ...

1 files changed, 22 insertions, 1 deletions

diff --git a/include/media/v4l2-device.h b/include/media/v4l2-device.h
index 0dd3e8e8653..5d5d550e63a 100644
--- a/include/media/v4l2-device.h
+++ b/include/media/v4l2-device.h
@@ -30,7 +30,7 @@
    basic V4L2 device-level support.
  */
 
-#define V4L2_DEVICE_NAME_SIZE (BUS_ID_SIZE + 16)
+#define V4L2_DEVICE_NAME_SIZE (20 + 16)
 
 struct v4l2_device {
 	/* dev->driver_data points to this struct.
@@ -53,10 +53,31 @@ struct v4l2_device {
    dev may be NULL in rare cases (ISA devices). In that case you
    must fill in the v4l2_dev->name field before calling this function. */
 int __must_check v4l2_device_register(struct device *dev, struct v4l2_device *v4l2_dev);
+
+/* Optional function to initialize the name field of struct v4l2_device using
+   the driver name and a driver-global atomic_t instance.
+   This function will increment the instance counter and returns the instance
+   value used in the name.
+
+   Example:
+
+   static atomic_t drv_instance = ATOMIC_INIT(0);
+
+   ...
+
+   instance = v4l2_device_set_name(&v4l2_dev, "foo", &drv_instance);
+
+   The first time this is called the name field will be set to foo0 and
+   this function returns 0. If the name ends with a digit (e.g. cx18),
+   then the name will be set to cx18-0 since cx180 looks really odd. */
+int v4l2_device_set_name(struct v4l2_device *v4l2_dev, const char *basename,
+						atomic_t *instance);
+
 /* Set v4l2_dev->dev to NULL. Call when the USB parent disconnects.
    Since the parent disappears this ensures that v4l2_dev doesn't have an
    invalid parent pointer. */
 void v4l2_device_disconnect(struct v4l2_device *v4l2_dev);
+
 /* Unregister all sub-devices and any other resources related to v4l2_dev. */
 void v4l2_device_unregister(struct v4l2_device *v4l2_dev);