Using driver defined IOCTL from user space (for my test driver)

[Vipul Jain <vipulsj@xxxxxxxxx>]

Hi All,

    I have written an character device driver and add IOCTL code into the driver. The only functionality that IOCTL provides is dumping the device structure properties in the user specified buffer. Now I would like to write an user application to test the driver. I am not sure how to include the defined IOCTL into the application code (as I have used _IOXX macros to create the IOCTLS and my driver perform checks for MAGIC number and etc.).

I tried defining IOCTLs as simple integer values and remove MAGIC number checks in my driver things looks good from application but I am looking for right way of implementing IOCTL in linux device driver.

Any pointers on this will be really helpful.

Regards,
Vipul.