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Commit 7138e892 authored by H Hartley Sweeten's avatar H Hartley Sweeten Committed by Greg Kroah-Hartman
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staging: comedi: ni_at_a2150: 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 in the driver.

Signed-off-by: default avatarH Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: default avatarIan Abbott <abbotti@mev.co.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent ad9eb43c

drivers/staging/comedi/drivers/ni_at_a2150.c

+1 −3
Original line number Diff line number Diff line
@@ -237,7 +237,7 @@ static irqreturn_t a2150_interrupt(int irq, void *d) 
		dpnt = devpriv->dma_buffer[i];

		/*  convert from 2's complement to unsigned coding */

		dpnt ^= 0x8000;

		cfc_write_to_buffer(s, dpnt);

		comedi_buf_write_samples(s, &dpnt, 1);

		if (cmd->stop_src == TRIG_COUNT) {

			if (--devpriv->count == 0) {	/* end of acquisition */

				async->events |= COMEDI_CB_EOA;
@@ -253,8 +253,6 @@ static irqreturn_t a2150_interrupt(int irq, void *d) 
	}

	release_dma_lock(flags);



	async->events |= COMEDI_CB_BLOCK;



	comedi_handle_events(dev, s);



	/* clear interrupt */