On Thu, May 17, 2018 at 8:03 PM, Guido Kiener <gu...@kiener-muenchen.de> wrote:
> Add ioctls USBTMC_IOCTL_GET_TIMEOUT / USBTMC_IOCTL_SET_TIMEOUT to
> get/set I/O timeout for specific file handle.




> +static int usbtmc_ioctl_get_timeout(struct usbtmc_file_data *file_data,
> +                               void __user *arg)
> +{
> +       __u32 timeout;
> +
> +       timeout = file_data->timeout;

Why do you need __u32 on kernel side?
Would plain u32 work?

> +
> +       return put_user(timeout, (__u32 __user *)arg);
> +}

> +static int usbtmc_ioctl_set_timeout(struct usbtmc_file_data *file_data,
> +                               void __user *arg)
> +{
> +       __u32 timeout;

Ditto.

> +       return 0;
> +}


-- 
With Best Regards,
Andy Shevchenko
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