diff mbox series

[1/5] videodev2.h: Use 8 hexadecimals (32 bits) for control flags

Message ID 20180925101434.20327-2-sakari.ailus@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series Add units to controls | expand

Commit Message

Sakari Ailus Sept. 25, 2018, 10:14 a.m. UTC
The V4L2 control flags are a 32-bit bitmask. Use 32-bit hexadecimal
numbers to specify the flags (was 16).

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 Documentation/media/uapi/v4l/vidioc-queryctrl.rst | 22 +++++++++++-----------
 include/uapi/linux/videodev2.h                    | 22 +++++++++++-----------
 2 files changed, 22 insertions(+), 22 deletions(-)

Comments

Laurent Pinchart Sept. 28, 2018, 1:16 p.m. UTC | #1
Hi Sakari,

Thank you for the patch.

On Tuesday, 25 September 2018 13:14:30 EEST Sakari Ailus wrote:
> The V4L2 control flags are a 32-bit bitmask. Use 32-bit hexadecimal
> numbers to specify the flags (was 16).
> 
> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>

This is the easy one,

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> ---
>  Documentation/media/uapi/v4l/vidioc-queryctrl.rst | 22 ++++++++++----------
>  include/uapi/linux/videodev2.h                    | 22 ++++++++++----------
>  2 files changed, 22 insertions(+), 22 deletions(-)
> 
> diff --git a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
> b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst index
> 5bd26e8c9a1a0..ff2d131223b84 100644
> --- a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
> +++ b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
> @@ -439,37 +439,37 @@ See also the examples in :ref:`control`.
> 
>      :widths:       3 1 4
> 
>      * - ``V4L2_CTRL_FLAG_DISABLED``
> -      - 0x0001
> +      - 0x00000001
>        - This control is permanently disabled and should be ignored by the
>  	application. Any attempt to change the control will result in an
>  	``EINVAL`` error code.
>      * - ``V4L2_CTRL_FLAG_GRABBED``
> -      - 0x0002
> +      - 0x00000002
>        - This control is temporarily unchangeable, for example because
>  	another application took over control of the respective resource.
>  	Such controls may be displayed specially in a user interface.
>  	Attempts to change the control may result in an ``EBUSY`` error code.
>      * - ``V4L2_CTRL_FLAG_READ_ONLY``
> -      - 0x0004
> +      - 0x00000004
>        - This control is permanently readable only. Any attempt to change
>  	the control will result in an ``EINVAL`` error code.
>      * - ``V4L2_CTRL_FLAG_UPDATE``
> -      - 0x0008
> +      - 0x00000008
>        - A hint that changing this control may affect the value of other
>  	controls within the same control class. Applications should update
>  	their user interface accordingly.
>      * - ``V4L2_CTRL_FLAG_INACTIVE``
> -      - 0x0010
> +      - 0x00000010
>        - This control is not applicable to the current configuration and
>  	should be displayed accordingly in a user interface. For example
>  	the flag may be set on a MPEG audio level 2 bitrate control when
>  	MPEG audio encoding level 1 was selected with another control.
>      * - ``V4L2_CTRL_FLAG_SLIDER``
> -      - 0x0020
> +      - 0x00000020
>        - A hint that this control is best represented as a slider-like
>  	element in a user interface.
>      * - ``V4L2_CTRL_FLAG_WRITE_ONLY``
> -      - 0x0040
> +      - 0x00000040
>        - This control is permanently writable only. Any attempt to read the
>  	control will result in an ``EACCES`` error code error code. This flag
>  	is typically present for relative controls or action controls
> @@ -477,7 +477,7 @@ See also the examples in :ref:`control`.
>  	action (e. g. motor control) but no meaningful value can be
>  	returned.
>      * - ``V4L2_CTRL_FLAG_VOLATILE``
> -      - 0x0080
> +      - 0x00000080
>        - This control is volatile, which means that the value of the
>  	control changes continuously. A typical example would be the
>  	current gain value if the device is in auto-gain mode. In such a
> @@ -493,7 +493,7 @@ See also the examples in :ref:`control`.
>  	   Setting a new value for a volatile control will *never* trigger a
> 
>  	   :ref:`V4L2_EVENT_CTRL_CH_VALUE <ctrl-changes-flags>` event.
> 
>      * - ``V4L2_CTRL_FLAG_HAS_PAYLOAD``
> -      - 0x0100
> +      - 0x00000100
>        - This control has a pointer type, so its value has to be accessed
>  	using one of the pointer fields of struct
> 
>  	:c:type:`v4l2_ext_control`. This flag is set
> 
> @@ -503,7 +503,7 @@ See also the examples in :ref:`control`.
>      * .. _FLAG_EXECUTE_ON_WRITE:
> 
>        - ``V4L2_CTRL_FLAG_EXECUTE_ON_WRITE``
> -      - 0x0200
> +      - 0x00000200
>        - The value provided to the control will be propagated to the driver
>  	even if it remains constant. This is required when the control
>  	represents an action on the hardware. For example: clearing an
> @@ -512,7 +512,7 @@ See also the examples in :ref:`control`.
>      * .. _FLAG_MODIFY_LAYOUT:
> 
>        - ``V4L2_CTRL_FLAG_MODIFY_LAYOUT``
> -      - 0x0400
> +      - 0x00000400
>        - Changing this control value may modify the layout of the
>          buffer (for video devices) or the media bus format (for
> sub-devices).
> 
> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
> index 184e4dbe8f9c0..ae083978988f1 100644
> --- a/include/uapi/linux/videodev2.h
> +++ b/include/uapi/linux/videodev2.h
> @@ -1681,17 +1681,17 @@ struct v4l2_querymenu {
>  } __attribute__ ((packed));
> 
>  /*  Control flags  */
> -#define V4L2_CTRL_FLAG_DISABLED		0x0001
> -#define V4L2_CTRL_FLAG_GRABBED		0x0002
> -#define V4L2_CTRL_FLAG_READ_ONLY	0x0004
> -#define V4L2_CTRL_FLAG_UPDATE		0x0008
> -#define V4L2_CTRL_FLAG_INACTIVE		0x0010
> -#define V4L2_CTRL_FLAG_SLIDER		0x0020
> -#define V4L2_CTRL_FLAG_WRITE_ONLY	0x0040
> -#define V4L2_CTRL_FLAG_VOLATILE		0x0080
> -#define V4L2_CTRL_FLAG_HAS_PAYLOAD	0x0100
> -#define V4L2_CTRL_FLAG_EXECUTE_ON_WRITE	0x0200
> -#define V4L2_CTRL_FLAG_MODIFY_LAYOUT	0x0400
> +#define V4L2_CTRL_FLAG_DISABLED		0x00000001
> +#define V4L2_CTRL_FLAG_GRABBED		0x00000002
> +#define V4L2_CTRL_FLAG_READ_ONLY	0x00000004
> +#define V4L2_CTRL_FLAG_UPDATE		0x00000008
> +#define V4L2_CTRL_FLAG_INACTIVE		0x00000010
> +#define V4L2_CTRL_FLAG_SLIDER		0x00000020
> +#define V4L2_CTRL_FLAG_WRITE_ONLY	0x00000040
> +#define V4L2_CTRL_FLAG_VOLATILE		0x00000080
> +#define V4L2_CTRL_FLAG_HAS_PAYLOAD	0x00000100
> +#define V4L2_CTRL_FLAG_EXECUTE_ON_WRITE	0x00000200
> +#define V4L2_CTRL_FLAG_MODIFY_LAYOUT	0x00000400
> 
>  /*  Query flags, to be ORed with the control ID */
>  #define V4L2_CTRL_FLAG_NEXT_CTRL	0x80000000
Hans Verkuil Sept. 28, 2018, 1:48 p.m. UTC | #2
On 09/25/2018 12:14 PM, Sakari Ailus wrote:
> The V4L2 control flags are a 32-bit bitmask. Use 32-bit hexadecimal
> numbers to specify the flags (was 16).
> 
> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>

Regards,

	Hans

> ---
>  Documentation/media/uapi/v4l/vidioc-queryctrl.rst | 22 +++++++++++-----------
>  include/uapi/linux/videodev2.h                    | 22 +++++++++++-----------
>  2 files changed, 22 insertions(+), 22 deletions(-)
> 
> diff --git a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
> index 5bd26e8c9a1a0..ff2d131223b84 100644
> --- a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
> +++ b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
> @@ -439,37 +439,37 @@ See also the examples in :ref:`control`.
>      :widths:       3 1 4
>  
>      * - ``V4L2_CTRL_FLAG_DISABLED``
> -      - 0x0001
> +      - 0x00000001
>        - This control is permanently disabled and should be ignored by the
>  	application. Any attempt to change the control will result in an
>  	``EINVAL`` error code.
>      * - ``V4L2_CTRL_FLAG_GRABBED``
> -      - 0x0002
> +      - 0x00000002
>        - This control is temporarily unchangeable, for example because
>  	another application took over control of the respective resource.
>  	Such controls may be displayed specially in a user interface.
>  	Attempts to change the control may result in an ``EBUSY`` error code.
>      * - ``V4L2_CTRL_FLAG_READ_ONLY``
> -      - 0x0004
> +      - 0x00000004
>        - This control is permanently readable only. Any attempt to change
>  	the control will result in an ``EINVAL`` error code.
>      * - ``V4L2_CTRL_FLAG_UPDATE``
> -      - 0x0008
> +      - 0x00000008
>        - A hint that changing this control may affect the value of other
>  	controls within the same control class. Applications should update
>  	their user interface accordingly.
>      * - ``V4L2_CTRL_FLAG_INACTIVE``
> -      - 0x0010
> +      - 0x00000010
>        - This control is not applicable to the current configuration and
>  	should be displayed accordingly in a user interface. For example
>  	the flag may be set on a MPEG audio level 2 bitrate control when
>  	MPEG audio encoding level 1 was selected with another control.
>      * - ``V4L2_CTRL_FLAG_SLIDER``
> -      - 0x0020
> +      - 0x00000020
>        - A hint that this control is best represented as a slider-like
>  	element in a user interface.
>      * - ``V4L2_CTRL_FLAG_WRITE_ONLY``
> -      - 0x0040
> +      - 0x00000040
>        - This control is permanently writable only. Any attempt to read the
>  	control will result in an ``EACCES`` error code error code. This flag
>  	is typically present for relative controls or action controls
> @@ -477,7 +477,7 @@ See also the examples in :ref:`control`.
>  	action (e. g. motor control) but no meaningful value can be
>  	returned.
>      * - ``V4L2_CTRL_FLAG_VOLATILE``
> -      - 0x0080
> +      - 0x00000080
>        - This control is volatile, which means that the value of the
>  	control changes continuously. A typical example would be the
>  	current gain value if the device is in auto-gain mode. In such a
> @@ -493,7 +493,7 @@ See also the examples in :ref:`control`.
>  	   Setting a new value for a volatile control will *never* trigger a
>  	   :ref:`V4L2_EVENT_CTRL_CH_VALUE <ctrl-changes-flags>` event.
>      * - ``V4L2_CTRL_FLAG_HAS_PAYLOAD``
> -      - 0x0100
> +      - 0x00000100
>        - This control has a pointer type, so its value has to be accessed
>  	using one of the pointer fields of struct
>  	:c:type:`v4l2_ext_control`. This flag is set
> @@ -503,7 +503,7 @@ See also the examples in :ref:`control`.
>      * .. _FLAG_EXECUTE_ON_WRITE:
>  
>        - ``V4L2_CTRL_FLAG_EXECUTE_ON_WRITE``
> -      - 0x0200
> +      - 0x00000200
>        - The value provided to the control will be propagated to the driver
>  	even if it remains constant. This is required when the control
>  	represents an action on the hardware. For example: clearing an
> @@ -512,7 +512,7 @@ See also the examples in :ref:`control`.
>      * .. _FLAG_MODIFY_LAYOUT:
>  
>        - ``V4L2_CTRL_FLAG_MODIFY_LAYOUT``
> -      - 0x0400
> +      - 0x00000400
>        - Changing this control value may modify the layout of the
>          buffer (for video devices) or the media bus format (for sub-devices).
>  
> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
> index 184e4dbe8f9c0..ae083978988f1 100644
> --- a/include/uapi/linux/videodev2.h
> +++ b/include/uapi/linux/videodev2.h
> @@ -1681,17 +1681,17 @@ struct v4l2_querymenu {
>  } __attribute__ ((packed));
>  
>  /*  Control flags  */
> -#define V4L2_CTRL_FLAG_DISABLED		0x0001
> -#define V4L2_CTRL_FLAG_GRABBED		0x0002
> -#define V4L2_CTRL_FLAG_READ_ONLY	0x0004
> -#define V4L2_CTRL_FLAG_UPDATE		0x0008
> -#define V4L2_CTRL_FLAG_INACTIVE		0x0010
> -#define V4L2_CTRL_FLAG_SLIDER		0x0020
> -#define V4L2_CTRL_FLAG_WRITE_ONLY	0x0040
> -#define V4L2_CTRL_FLAG_VOLATILE		0x0080
> -#define V4L2_CTRL_FLAG_HAS_PAYLOAD	0x0100
> -#define V4L2_CTRL_FLAG_EXECUTE_ON_WRITE	0x0200
> -#define V4L2_CTRL_FLAG_MODIFY_LAYOUT	0x0400
> +#define V4L2_CTRL_FLAG_DISABLED		0x00000001
> +#define V4L2_CTRL_FLAG_GRABBED		0x00000002
> +#define V4L2_CTRL_FLAG_READ_ONLY	0x00000004
> +#define V4L2_CTRL_FLAG_UPDATE		0x00000008
> +#define V4L2_CTRL_FLAG_INACTIVE		0x00000010
> +#define V4L2_CTRL_FLAG_SLIDER		0x00000020
> +#define V4L2_CTRL_FLAG_WRITE_ONLY	0x00000040
> +#define V4L2_CTRL_FLAG_VOLATILE		0x00000080
> +#define V4L2_CTRL_FLAG_HAS_PAYLOAD	0x00000100
> +#define V4L2_CTRL_FLAG_EXECUTE_ON_WRITE	0x00000200
> +#define V4L2_CTRL_FLAG_MODIFY_LAYOUT	0x00000400
>  
>  /*  Query flags, to be ORed with the control ID */
>  #define V4L2_CTRL_FLAG_NEXT_CTRL	0x80000000
>
diff mbox series

Patch

diff --git a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
index 5bd26e8c9a1a0..ff2d131223b84 100644
--- a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
+++ b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
@@ -439,37 +439,37 @@  See also the examples in :ref:`control`.
     :widths:       3 1 4
 
     * - ``V4L2_CTRL_FLAG_DISABLED``
-      - 0x0001
+      - 0x00000001
       - This control is permanently disabled and should be ignored by the
 	application. Any attempt to change the control will result in an
 	``EINVAL`` error code.
     * - ``V4L2_CTRL_FLAG_GRABBED``
-      - 0x0002
+      - 0x00000002
       - This control is temporarily unchangeable, for example because
 	another application took over control of the respective resource.
 	Such controls may be displayed specially in a user interface.
 	Attempts to change the control may result in an ``EBUSY`` error code.
     * - ``V4L2_CTRL_FLAG_READ_ONLY``
-      - 0x0004
+      - 0x00000004
       - This control is permanently readable only. Any attempt to change
 	the control will result in an ``EINVAL`` error code.
     * - ``V4L2_CTRL_FLAG_UPDATE``
-      - 0x0008
+      - 0x00000008
       - A hint that changing this control may affect the value of other
 	controls within the same control class. Applications should update
 	their user interface accordingly.
     * - ``V4L2_CTRL_FLAG_INACTIVE``
-      - 0x0010
+      - 0x00000010
       - This control is not applicable to the current configuration and
 	should be displayed accordingly in a user interface. For example
 	the flag may be set on a MPEG audio level 2 bitrate control when
 	MPEG audio encoding level 1 was selected with another control.
     * - ``V4L2_CTRL_FLAG_SLIDER``
-      - 0x0020
+      - 0x00000020
       - A hint that this control is best represented as a slider-like
 	element in a user interface.
     * - ``V4L2_CTRL_FLAG_WRITE_ONLY``
-      - 0x0040
+      - 0x00000040
       - This control is permanently writable only. Any attempt to read the
 	control will result in an ``EACCES`` error code error code. This flag
 	is typically present for relative controls or action controls
@@ -477,7 +477,7 @@  See also the examples in :ref:`control`.
 	action (e. g. motor control) but no meaningful value can be
 	returned.
     * - ``V4L2_CTRL_FLAG_VOLATILE``
-      - 0x0080
+      - 0x00000080
       - This control is volatile, which means that the value of the
 	control changes continuously. A typical example would be the
 	current gain value if the device is in auto-gain mode. In such a
@@ -493,7 +493,7 @@  See also the examples in :ref:`control`.
 	   Setting a new value for a volatile control will *never* trigger a
 	   :ref:`V4L2_EVENT_CTRL_CH_VALUE <ctrl-changes-flags>` event.
     * - ``V4L2_CTRL_FLAG_HAS_PAYLOAD``
-      - 0x0100
+      - 0x00000100
       - This control has a pointer type, so its value has to be accessed
 	using one of the pointer fields of struct
 	:c:type:`v4l2_ext_control`. This flag is set
@@ -503,7 +503,7 @@  See also the examples in :ref:`control`.
     * .. _FLAG_EXECUTE_ON_WRITE:
 
       - ``V4L2_CTRL_FLAG_EXECUTE_ON_WRITE``
-      - 0x0200
+      - 0x00000200
       - The value provided to the control will be propagated to the driver
 	even if it remains constant. This is required when the control
 	represents an action on the hardware. For example: clearing an
@@ -512,7 +512,7 @@  See also the examples in :ref:`control`.
     * .. _FLAG_MODIFY_LAYOUT:
 
       - ``V4L2_CTRL_FLAG_MODIFY_LAYOUT``
-      - 0x0400
+      - 0x00000400
       - Changing this control value may modify the layout of the
         buffer (for video devices) or the media bus format (for sub-devices).
 
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 184e4dbe8f9c0..ae083978988f1 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1681,17 +1681,17 @@  struct v4l2_querymenu {
 } __attribute__ ((packed));
 
 /*  Control flags  */
-#define V4L2_CTRL_FLAG_DISABLED		0x0001
-#define V4L2_CTRL_FLAG_GRABBED		0x0002
-#define V4L2_CTRL_FLAG_READ_ONLY	0x0004
-#define V4L2_CTRL_FLAG_UPDATE		0x0008
-#define V4L2_CTRL_FLAG_INACTIVE		0x0010
-#define V4L2_CTRL_FLAG_SLIDER		0x0020
-#define V4L2_CTRL_FLAG_WRITE_ONLY	0x0040
-#define V4L2_CTRL_FLAG_VOLATILE		0x0080
-#define V4L2_CTRL_FLAG_HAS_PAYLOAD	0x0100
-#define V4L2_CTRL_FLAG_EXECUTE_ON_WRITE	0x0200
-#define V4L2_CTRL_FLAG_MODIFY_LAYOUT	0x0400
+#define V4L2_CTRL_FLAG_DISABLED		0x00000001
+#define V4L2_CTRL_FLAG_GRABBED		0x00000002
+#define V4L2_CTRL_FLAG_READ_ONLY	0x00000004
+#define V4L2_CTRL_FLAG_UPDATE		0x00000008
+#define V4L2_CTRL_FLAG_INACTIVE		0x00000010
+#define V4L2_CTRL_FLAG_SLIDER		0x00000020
+#define V4L2_CTRL_FLAG_WRITE_ONLY	0x00000040
+#define V4L2_CTRL_FLAG_VOLATILE		0x00000080
+#define V4L2_CTRL_FLAG_HAS_PAYLOAD	0x00000100
+#define V4L2_CTRL_FLAG_EXECUTE_ON_WRITE	0x00000200
+#define V4L2_CTRL_FLAG_MODIFY_LAYOUT	0x00000400
 
 /*  Query flags, to be ORed with the control ID */
 #define V4L2_CTRL_FLAG_NEXT_CTRL	0x80000000