Hi,
Sorry to bother you again, but here is the situation:
I have 2 drivers: an ov2640 driver and my atmel driver.
Basically the ov2640 driver is the same as the ov7670 driver.
So what I don't know is how to call the ov2640 functions(such as set
format) in my atmel driver.
In the ov2640 I used the function: v4l2_i2c_subdev_init, and in the
atmel driver I used v4l2_device_register.
But I don't know where I should use the v4l2_i2c_new_subdev function,
and how to link my atmel video struct to the i2c sensor.
Is there any examples in linux?
Regards,
Sedji
Le 6/1/2010 10:14 AM, Sedji Gaouaou a écrit :
Hi,
1. Something first should call v4l2_device_register() on a v4l2_device
object. (Typically there is only one v4l2_device object per "bridge"
chip between the PCI, PCIe, or USB bus and the subdevices, even if that
bridge chip has more than one I2C master implementation.)
2. Then, for subdevices connected to the bridge chip via I2C, something
needs to call v4l2_i2c_new_subdev() with the v4l2_device pointer as one
of the arguments, to get back a v4l2_subdevice instance pointer.
3. After that, v4l2_subdev_call() with the v4l2_subdev pointer as one of
the arguments can be used to invoke the subdevice methods.
TV Video capture drivers do this work themselves. Drivers using a
camera framework may have the framework doing some of the work for them.
Regards,
Andy
Is there a sensor driver which is using this method?
To write the ov2640 driver I have just copied the ov7670.c file, and I
didn't find the v4l2_i2c_new_subdev in it...
Regards,
Sedji
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
