From: Hartley Sweeten <HartleyS@visionengravers.com>
To: Ian Abbott <abbotti@mev.co.uk>,
        "driverdev-devel@linuxdriverproject.org" 
	<driverdev-devel@linuxdriverproject.org>
CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH] staging: comedi: improve comedi_check_chanlist()
 documentation
Thread-Topic: [PATCH] staging: comedi: improve comedi_check_chanlist()
 documentation
Thread-Index: AQHQz6IYSfjJ9xMy2U6TssBZxPZ1pZ39qoLQ
Date: Wed, 5 Aug 2015 17:36:06 +0000
Message-ID: <BN3PR0101MB105792E67955C7DA3CEB6BD1D0750@BN3PR0101MB1057.prod.exchangelabs.com>
References: <1438794806-15873-1-git-send-email-abbotti@mev.co.uk>
In-Reply-To: <1438794806-15873-1-git-send-email-abbotti@mev.co.uk>
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On Wednesday, August 05, 2015 10:13 AM, Ian Abbott wrote:
>
> Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
> ---
>  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@visionengravers.com>

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