Expand the kernel-doc descriptions of those exported functions that already have kernel-doc comments. Signed-off-by: Ian Abbott <abbotti@xxxxxxxxx> --- drivers/staging/comedi/comedi_buf.c | 37 +++++++++++++++++++++++-------------- 1 file changed, 23 insertions(+), 14 deletions(-) diff --git a/drivers/staging/comedi/comedi_buf.c b/drivers/staging/comedi/comedi_buf.c index 19e7b22..63553d9 100644 --- a/drivers/staging/comedi/comedi_buf.c +++ b/drivers/staging/comedi/comedi_buf.c @@ -469,15 +469,21 @@ static void comedi_buf_memcpy_from(struct comedi_subdevice *s, } /** - * comedi_buf_write_samples - write sample data to comedi buffer - * @s: comedi_subdevice struct - * @data: samples - * @nsamples: number of samples + * comedi_buf_write_samples() - Write sample data to COMEDI buffer + * @s: COMEDI subdevice. + * @data: Pointer to source samples. + * @nsamples: Number of samples to write. * - * Writes nsamples to the comedi buffer associated with the subdevice, marks - * it as written and updates the acquisition scan progress. + * Write up to @nsamples samples to the COMEDI acquisition data buffer + * associated with the subdevice, mark it as written and update the + * acquisition scan progress. If there is not enough room for the specified + * number of samples, the number of samples written is limited to the number + * that will fit and the %COMEDI_CB_OVERFLOW event flag is set to cause the + * acquisition to terminate with an overrun error. Set the %COMEDI_CB_BLOCK + * event flag if any samples are written to cause waiting tasks to be woken + * when the event flags are processed. * - * Returns the amount of data written in bytes. + * Return: The amount of data written in bytes. */ unsigned int comedi_buf_write_samples(struct comedi_subdevice *s, const void *data, unsigned int nsamples) @@ -513,15 +519,18 @@ unsigned int comedi_buf_write_samples(struct comedi_subdevice *s, EXPORT_SYMBOL_GPL(comedi_buf_write_samples); /** - * comedi_buf_read_samples - read sample data from comedi buffer - * @s: comedi_subdevice struct - * @data: destination - * @nsamples: maximum number of samples to read + * comedi_buf_read_samples() - Read sample data from COMEDI buffer + * @s: COMEDI subdevice. + * @data: Pointer to destination. + * @nsamples: Maximum number of samples to read. * - * Reads up to nsamples from the comedi buffer associated with the subdevice, - * marks it as read and updates the acquisition scan progress. + * Read up to @nsamples samples from the COMEDI acquisition data buffer + * associated with the subdevice, mark it as read and update the acquisition + * scan progress. Limit the number of samples read to the number available. + * Set the %COMEDI_CB_BLOCK event flag if any samples are read to cause waiting + * tasks to be woken when the event flags are processed. * - * Returns the amount of data read in bytes. + * Return: The amount of data read in bytes. */ unsigned int comedi_buf_read_samples(struct comedi_subdevice *s, void *data, unsigned int nsamples) -- 2.5.1 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
