Need to add mt9t112 sensor as part of kernel

Hello,  Asha!

For integrate your driver in Linux you should use follow steps:
1. write driver
2. modify Kconfig in selected section
3. modify Makefile in selected section
You can use http://www.micrel.com/_PDF/Ethernet/sw_designkit/Switch_Products/KSZ8863/Device_Drivers/KSZ8873%20PHY%20Driver%20Porting%20Guide%20v1.1.pdf as example.

Or you can build your driver separately.

Hi,

Thanks and I verified that the driver is already part of ti-sdk-beagleboard-05.05.01.00 -- file mt9t112.c is there (media/video) and the Kconfig file already has SOC_CAMERA_MT9T112 in it and the Makefile also has CONFIG_SOC_CAMERA_MT9T112 corresponding to  mt9t112.c but I do not see the  mt9t112.o file which indicates it has not been compiled. Also, I cannot find it when I go search for it via "make menuconfig"

Thank,

Asha

Hello, Asha!

May be it depend on another component and you not use it, you can read depends for CONFIG_SOC_CAMERA_MT9T112 in KConfig.

Hi,

When you do a menuconfig, traverse down

------>>>Device Drivers

    -------->>> Multimedia Support (Select it if its unselected)

                ----------->>> Camera/Video grabbers support (Select it if its unselected)

                ----------->>> V4L platform devices  (Select it if its unselected)

                                --------->>> SoC Camera Support (Select it if its unselected)

                                 ---------->>> Select MT9T112 Sensor

and you are ready to build now.

Note: if you dont find MT9T112 sensor here post the code of Kconfig for MT9T112 which you have.

Regards,

--Prabhakar Lad

Hi Prabhakar,

Thanks and I looked at the menuconfig and I noted  that Multimedia Support is selected but under it I do not see option for Camera/Video grabbers support and so I cannot select V4L platform devices.  I am attaching 4 files.  Kconfig_media and Makefile_media are from drivers/media  and Kconfig_video and Makefile_video are from drivers/media/video.  I appreciate help here.  Thanks, Asha

Hi,

You missed out to attach the files.

Regards,

--Prabhakar

Hi Prabhakar,

I am trying to attach -- I guess the file extentions were not the correct ones.  And so I am attaching the 4 files in a zipped file, MyWork.zip

Thanks very much,

Asha4186.MyWork.zip

Hi,  I found the way to enable the mt9t112 sensor via menuconfig:  device drivers->multimedia support->video captures->v4l paltform devices.  I am also attaching my top level config file named topConfig.txt1256.topConfig.txt

I added a "printk(KERN INFO "mt9t112.c\n") in file mt9t112.c in the "probe" function. I rebuilt the uImage and ran it on the target. I never see my print -- just to see if I am running my version

 I see  the mt9t112 driver when I do lsmod but I never see my printk.  I can  run mplayer and can capture screenshot.  I am trying to capture video with mencoder but it is not in the ti-sdk-beagleboard-05.05.01.00-Linux-x86-Install package.  How can I get the mencoder and build it with this package?  Thanks very much. Asha

Hi,

This means that, the 'beagleboard' there isnt code for mt9t112.(Can you

check the machine files), Looks like you need add support for it in the machine code.

Regards,

--Prabhakar Lad

Hi Prabhaker,

I am sorry but I am  not that familiar and so I do not know the associated machine files. Which machine files?

Thanks very much.

Asha