diff options
Diffstat (limited to 'drivers/staging/comedi/comedi_buf.c')
| -rw-r--r-- | drivers/staging/comedi/comedi_buf.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/staging/comedi/comedi_buf.c b/drivers/staging/comedi/comedi_buf.c index 5aa86842fcce..52a75d2238dc 100644 --- a/drivers/staging/comedi/comedi_buf.c +++ b/drivers/staging/comedi/comedi_buf.c @@ -510,7 +510,18 @@ void comedi_buf_memcpy_from(struct comedi_subdevice *s, unsigned int offset, } EXPORT_SYMBOL_GPL(comedi_buf_memcpy_from); -/* Writes an array of data points to comedi's buffer */ +/** + * comedi_write_array_to_buffer - write data to comedi buffer + * @s: comedi_subdevice struct + * @data: destination + * @num_bytes: number of bytes to write + * + * Writes up to num_bytes bytes of data to the comedi buffer associated with + * the subdevice, marks it as written and updates the acquisition scan + * progress. + * + * Returns the amount of data written in bytes. + */ unsigned int comedi_write_array_to_buffer(struct comedi_subdevice *s, const void *data, unsigned int num_bytes) |