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staging: comedi: das800: use comedi_buf_write_samples()

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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>
This commit is contained in:
H Hartley Sweeten 2014-10-22 15:36:27 -07:00 committed by Greg Kroah-Hartman
parent 88f9662abb
commit ad9eb43c93
1 changed files with 2 additions and 3 deletions
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5
drivers/staging/comedi/drivers/das800.c
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@ -511,12 +511,11 @@ static irqreturn_t das800_interrupt(int irq, void *d)
/* if there are more data points to collect */ /* if there are more data points to collect */
if (cmd->stop_src == TRIG_NONE || devpriv->count > 0) { if (cmd->stop_src == TRIG_NONE || devpriv->count > 0) {
/* write data point to buffer */ val &= s->maxdata;
cfc_write_to_buffer(s, val & s->maxdata); comedi_buf_write_samples(s, &val, 1);
devpriv->count--; devpriv->count--;
} }
} }
async->events |= COMEDI_CB_BLOCK;
if (fifo_overflow) { if (fifo_overflow) {
spin_unlock_irqrestore(&dev->spinlock, irq_flags); spin_unlock_irqrestore(&dev->spinlock, irq_flags);