On Wednesday, August 05, 2015 10:13 AM, Ian Abbott wrote:
>
> Signed-off-by: Ian Abbott <abbotti@xxxxxxxxx>
> ---
> drivers/staging/comedi/range.c | 13 ++++++++++++-
> 1 file changed, 12 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/staging/comedi/range.c b/drivers/staging/comedi/range.c
> index 6a393b2..ce3a58a 100644
> --- a/drivers/staging/comedi/range.c
> +++ b/drivers/staging/comedi/range.c
> @@ -102,7 +102,18 @@ int do_rangeinfo_ioctl(struct comedi_device *dev,
> * @s: comedi_subdevice struct
> * @n: number of elements in the chanlist
> * @chanlist: the chanlist to validate
> -*/
> + *
> + * Each element consists of a channel number, a range index, an analog
> + * reference type and some flags, all packed into an unsigned int.
> + *
> + * This checks that the channel number and range index are supported by
> + * the comedi subdevice. It does not check whether the analog reference
> + * type and the flags are supported. Drivers that care should check those
> + * themselves.
> + *
> + * Return: %0 if all @chanlist elements are valid (success),
> + * %-EINVAL if one or more elements are invalid.
> + */
> int comedi_check_chanlist(struct comedi_subdevice *s, int n,
> unsigned int *chanlist)
> {
Thanks,
Reviewed-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
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