Commit ad9eb43c authored Oct 22, 2014 by H Hartley Sweeten Committed by Greg Kroah-Hartman Oct 29, 2014

staging: comedi: das800: use comedi_buf_write_samples()



Use comedi_buf_write_samples() instead of cfc_write_to_buffer() to add the
single sample to the async buffer.

The core will add the COMEDI_CB_BLOCK event when data is written to the
async buffer. Remove the unnecessary event from the driver.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 88f9662a

drivers/staging/comedi/drivers/das800.c

+2 −3

Original line number	Diff line number	Diff line
		@@ -511,12 +511,11 @@ static irqreturn_t das800_interrupt(int irq, void *d)

		/* if there are more data points to collect */
		if (cmd->stop_src == TRIG_NONE \|\| devpriv->count > 0) {
		/* write data point to buffer */
		cfc_write_to_buffer(s, val & s->maxdata);
		val &= s->maxdata;
		comedi_buf_write_samples(s, &val, 1);
		devpriv->count--;
		}
		}
		async->events \|= COMEDI_CB_BLOCK;

		if (fifo_overflow) {
		spin_unlock_irqrestore(&dev->spinlock, irq_flags);