Re: [PATCH 3/6] iio: trigger: Add missing fields in kernel docs

From: Cristina Georgiana Opriceana
Date: Thu Aug 06 2015 - 07:59:59 EST


On Sun, Aug 2, 2015 at 8:32 PM, Jonathan Cameron <jic23@xxxxxxxxxx> wrote:
>
> On 24/07/15 14:20, Cristina Opriceana wrote:
> > Fix kernel docs warnings by adding the missing description
> > for each of the existing function parameters.
> >
> > Signed-off-by: Cristina Opriceana <cristina.opriceana@xxxxxxxxx>
> A few comments inline.
> > ---
> > drivers/iio/industrialio-trigger.c | 27 ++++++++++++++++++++++++---
> > 1 file changed, 24 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c
> > index d31098e..cae2939 100644
> > --- a/drivers/iio/industrialio-trigger.c
> > +++ b/drivers/iio/industrialio-trigger.c
> > @@ -40,7 +40,14 @@ static DEFINE_MUTEX(iio_trigger_list_lock);
> >
> > /**
> > * iio_trigger_read_name() - retrieve useful identifying name
> > - **/
> > + * @dev: device that holds the iio_trigger
> The dev structure is within the struct iio_trigger rather than the other
> way around. It is there to give it it a presence in the device model.
> I'd keep this statement vague and say perhaps,
> device associated with the iio_trigger.

Right. It was a little over-formulated. I sent a v2.

> > + * @attr: pointer to the device_attribute structure that is
> > + * being processed
> > + * @buf: buffer to print the name into
> > + *
> > + * Return: a negative number on failure or the number of written
> > + * characters on success.
> > + */
> > static ssize_t iio_trigger_read_name(struct device *dev,
> > struct device_attribute *attr,
> > char *buf)
> > @@ -288,10 +295,17 @@ EXPORT_SYMBOL_GPL(iio_dealloc_pollfunc);
> >
> > /**
> > * iio_trigger_read_current() - trigger consumer sysfs query current trigger
> > + * @dev: Device this iio_dev belongs to
> Again, this implies a tighter relationship than is actually true.
> The dev isn't the underlying device (e.g. the spi one or i2c one
> but rather one created by the iio subsystem to give the iio_dev a
> presence in the device model - on the iio sysfs bus).
> > + * @attr: Pointer to the device_attribute structure that
> > + * is being processed
> > + * @buf: Buffer where the current trigger name will be printed into
> > *
> > * For trigger consumers the current_trigger interface allows the trigger
> > * used by the device to be queried.
> > - **/
> > + *
> > + * Return: a negative number on failure, the number of characters written
> > + * on success or 0 if no trigger is available
> > + */
> > static ssize_t iio_trigger_read_current(struct device *dev,
> > struct device_attribute *attr,
> > char *buf)
> > @@ -305,11 +319,18 @@ static ssize_t iio_trigger_read_current(struct device *dev,
> >
> > /**
> > * iio_trigger_write_current() - trigger consumer sysfs set current trigger
> > + * @dev: Device that this iio_dev belongs to
> > + * @attr: Device attribute that is being processed
> > + * @buf: String buffer that holds the name of the trigger
> > + * @len: Length of the trigger name held by buf
> > *
> > * For trigger consumers the current_trigger interface allows the trigger
> > * used for this device to be specified at run time based on the trigger's
> > * name.
> > - **/
> > + *
> > + * Return: negative error code on failure or length of the buffer
> > + * on success
> > + */
> > static ssize_t iio_trigger_write_current(struct device *dev,
> > struct device_attribute *attr,
> > const char *buf,
> >
>
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