Camera interface - Revision history

JulienB: /* Driver */

2026-02-02T12:07:05Z

Driver

← Older revision		Revision as of 14:07, 2 February 2026
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	* From now we consider that you have a supported camera module plugged on your development board		* From now we consider that you have a supported camera module plugged on your development board
	* CSI interface can be driven through the V4L2 (Video For Linux) standard interface as soon as CSI/MIPI driver is loaded:		* CSI interface can be driven through the V4L2 (Video For Linux) standard interface as soon as CSI/MIPI driver is loaded:

	<tabber>		<tabber>

	\|-\|APF27=		\|-\|APF27=

	<pre class="apf">		<pre class="apf">
	# modprobe mx27_camera		# modprobe mx27_camera
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	* Then you have to load your camera driver in order for him to "attach" to the CSI one (for example for the OV9653):		* Then you have to load your camera driver in order for him to "attach" to the CSI one (for example for the OV9653):
	<pre class="apf">		<pre class="apf">
	# modprobe ov96xx		# modprobe ov96xx
	</pre>		</pre>

	\|-\|APF6 (kernel 3.19+)=		\|-\|APF6=
			* for kernel 3.19+ :
	<pre class="apf">		<pre class="apf">
	# modprobe -a mx6-camera mipi-csi2 ov5640-mipi		# modprobe -a mx6-camera mipi-csi2 ov5640-mipi
	</pre>		</pre>

JulienB: Tabs

2026-02-02T12:05:08Z

Tabs

← Older revision		Revision as of 14:05, 2 February 2026
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	* From now we consider that you have a supported camera module plugged on your development board		* From now we consider that you have a supported camera module plugged on your development board
	* CSI interface can be driven through the V4L2 (Video For Linux) standard interface as soon as CSI/MIPI driver is loaded:		* CSI interface can be driven through the V4L2 (Video For Linux) standard interface as soon as CSI/MIPI driver is loaded:
	~~{\| border="1" cellpadding="10" cellspacing="0" summary="Camera drivers" class="wikitable"~~		<tabber>
	\|- ~~style~~=~~"background:#efefef;" align="center"~~
	~~! APF27 \|\| APF6 (kernel 3.19+)~~		\|-\|APF27=
	~~\|---~~
	\|<pre class="apf">		<pre class="apf">
	# modprobe mx27_camera		# modprobe mx27_camera
	</pre>		</pre>
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	# modprobe ov96xx		# modprobe ov96xx
	</pre>		</pre>
	\|
			\|-\|APF6 (kernel 3.19+)=

	<pre class="apf">		<pre class="apf">
	# modprobe -a mx6-camera mipi-csi2 ov5640-mipi		# modprobe -a mx6-camera mipi-csi2 ov5640-mipi
	</pre>		</pre>
	\|}

			\|-\|OPOS93=
	* On OPOS93, the driver is automatically loaded when the camera is connected.		* On OPOS93, the driver is automatically loaded when the camera is connected.
			</tabber>

	* Now it's up to you to configure your camera with the tools/API the camera driver is offering...		* Now it's up to you to configure your camera with the tools/API the camera driver is offering...

JulienB: Tabs

2026-02-02T11:59:25Z

Tabs

← Older revision		Revision as of 13:59, 2 February 2026
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	==Hardware==		==Hardware==
	~~===~~APF27===
			<tabber>
			\|-\|APF27=
	* All the signals of the i.MX27 CSI interface can be found on the J9 connector of the [[APF27Dev\|APF27Dev development board]].		* All the signals of the i.MX27 CSI interface can be found on the J9 connector of the [[APF27Dev\|APF27Dev development board]].
	* You should connect an external camera/sensor compatible with the CSI interface (8bits data bus) to see something ;-). Here are the tested sensor models:		* You should connect an external camera/sensor compatible with the CSI interface (8bits data bus) to see something ;-). Here are the tested sensor models:
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	* All these sensors are controllable through an I2C interface. The one on J8 connector of [[APF27Dev]] can for example be used.		* All these sensors are controllable through an I2C interface. The one on J8 connector of [[APF27Dev]] can for example be used.

	~~===~~APF6===		\|-\|APF6=
	* [[APF6Dev]] boards have a wandcam (OV5640) compatible connector (near the PCIexpress one).		* [[APF6Dev]] boards have a wandcam (OV5640) compatible connector (near the PCIexpress one).
	* MIPI bus is used on [[APF6Dev]]		* MIPI bus is used on [[APF6Dev]]

	~~===~~OPOS93===		\|-\|OPOS93=
	* The [[OPOS93DEV]] board has a 15-pin Raspberry Pi Camera compatible connector (located below the OPOS93 SoC).		* The [[OPOS93DEV]] board has a 15-pin Raspberry Pi Camera compatible connector (located below the OPOS93 SoC).
	* A 2-lane MIPI CSI-2 bus is used.		* A 2-lane MIPI CSI-2 bus is used.
	* Tested with the OmniVision OV5647 sensor.		* Tested with the OmniVision OV5647 sensor.
			</tabber>

	==Driver==		==Driver==

JulienB: /* Test */

2026-01-19T17:04:56Z

Test

← Older revision		Revision as of 19:04, 19 January 2026
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	* Let's create a script:		* Let's create a script:
	<pre class="apf">		<pre class="apf">
	# ~~cat << EOF >> setCam.sh && chmod +x~~ setCam.sh		# vi setCam.sh

	SOURCE=$3		SOURCE=$3
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	</pre>		</pre>
	<pre class="apf">		<pre class="apf">
	~~EOF~~		# chmod +x setCam.sh
	</pre>		</pre>

JulienB: /* Test */

2026-01-19T14:33:25Z

Test

← Older revision		Revision as of 16:33, 19 January 2026
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	v4l2-ctl -d /dev/v4l-subdev3 -c auto_exposure=0		v4l2-ctl -d /dev/v4l-subdev3 -c auto_exposure=0
	v4l2-ctl -d /dev/v4l-subdev3 -c white_balance_automatic=1		v4l2-ctl -d /dev/v4l-subdev3 -c white_balance_automatic=1

	</pre>		</pre>
	<pre class="apf">		<pre class="apf">

JulienB: /* Test */

2026-01-19T14:32:59Z

Test

← Older revision		Revision as of 16:32, 19 January 2026
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	v4l2-ctl -d /dev/v4l-subdev3 -c white_balance_automatic=1		v4l2-ctl -d /dev/v4l-subdev3 -c white_balance_automatic=1
	</pre>		</pre>
	<pre>		<pre class="apf">
	EOF		EOF
	</pre>		</pre>

JulienB: /* Test */

2026-01-19T14:32:43Z

Test

← Older revision		Revision as of 16:32, 19 January 2026
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	v4l2-ctl -d /dev/v4l-subdev3 -c auto_exposure=0		v4l2-ctl -d /dev/v4l-subdev3 -c auto_exposure=0
	v4l2-ctl -d /dev/v4l-subdev3 -c white_balance_automatic=1		v4l2-ctl -d /dev/v4l-subdev3 -c white_balance_automatic=1
			</pre>
			<pre>
	EOF		EOF
	</pre>		</pre>

JulienB: /* Test */

2026-01-19T14:24:23Z

Test

← Older revision		Revision as of 16:24, 19 January 2026
Line 93:		Line 93:
	v4l2-ctl -d /dev/v4l-subdev3 -c auto_exposure=0		v4l2-ctl -d /dev/v4l-subdev3 -c auto_exposure=0
	v4l2-ctl -d /dev/v4l-subdev3 -c white_balance_automatic=1		v4l2-ctl -d /dev/v4l-subdev3 -c white_balance_automatic=1
	> EOF		EOF
	</pre>		</pre>

JulienB: /* Hardware */

2026-01-16T18:14:53Z

Hardware

← Older revision		Revision as of 20:14, 16 January 2026
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	* [[APF6Dev]] boards have a wandcam (OV5640) compatible connector (near the PCIexpress one).		* [[APF6Dev]] boards have a wandcam (OV5640) compatible connector (near the PCIexpress one).
	* MIPI bus is used on [[APF6Dev]]		* MIPI bus is used on [[APF6Dev]]


	===OPOS93===		===OPOS93===

SebT at 19:10, 14 August 2025

2025-08-14T19:10:36Z

@@ Line 1: / Line 1: @@
-On this page you will find useful informations on how to use the Camera/CMOS Sensor Interface (CSI) of the i.MX chip found on your APF board.
+On this page you will find useful informations on how to use the Camera/CMOS Sensor Interface (CSI/CSI2) of the i.MX chip found on your APF and OPOS93Dev board.
-Currently only the [[APF27]] & [[APF6]] are supported.
+Currently only the [[APF27]], [[APF6]] & [[OPOS93]] are supported.
 ==Hardware==
@@ Line 14: / Line 14: @@
 * [[APF6Dev]] boards have a wandcam (OV5640) compatible connector (near the PCIexpress one).
 * MIPI bus is used on [[APF6Dev]]
 ==Driver==
@@ Line 35: / Line 41: @@
 |}
+* On OPOS93, the driver is automatically loaded when the camera is connected.
 * Now it's up to you to configure your camera with the tools/API the camera driver is offering...
@@ Line 42: / Line 48: @@
 ** it may be installed by default on your rootfs depending on your Buildroot defconfig.
 ** to launch it (here to have a 640x480 camera image on a LW700 TFT):
-<pre class=apf>
+<pre class="apf">
 # capture --width 640 --height 480 --cam_width 640 --cam_height 480
 </pre>
 * To trigger autofocus (APF6 with 3.19+ kernel):
-<pre class=apf>
+<pre class="apf">
 # v4l2-ctl -c auto_focus_start=1
 </pre>