diff options
| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2014-10-30 11:21:54 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-03 16:30:04 -0800 |
| commit | a7d3de75cf00574f8d360d51d0e1beb3c561cc89 (patch) | |
| tree | 8c5090b07094bdc60f2d160934c9761ea6f85e43 /drivers/staging/comedi/drivers/usbdux.c | |
| parent | 453fd2b395799fa2e83e3e926ff7fee810d26f92 (diff) | |
staging: comedi: drivers do not need to reset the async->cur_chan
The comedi core calls comedi_buf_reset() before starting an async command
(*do_cmd) and after returning a subdevice to an idle state (*cancel).
The drivers do not need to reset the async->cur_chan in those functions.
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>
Diffstat (limited to 'drivers/staging/comedi/drivers/usbdux.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/usbdux.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/staging/comedi/drivers/usbdux.c b/drivers/staging/comedi/drivers/usbdux.c index 579e6bce529d..40f5cd03651d 100644 --- a/drivers/staging/comedi/drivers/usbdux.c +++ b/drivers/staging/comedi/drivers/usbdux.c @@ -698,9 +698,6 @@ static int usbdux_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) if (devpriv->ai_cmd_running) goto ai_cmd_exit; - /* set current channel of the running acquisition to zero */ - s->async->cur_chan = 0; - devpriv->dux_commands[1] = len; for (i = 0; i < len; ++i) { unsigned int chan = CR_CHAN(cmd->chanlist[i]); @@ -996,9 +993,6 @@ static int usbdux_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) if (devpriv->ao_cmd_running) goto ao_cmd_exit; - /* set current channel of the running acquisition to zero */ - s->async->cur_chan = 0; - /* we count in steps of 1ms (125us) */ /* 125us mode not used yet */ if (0) { /* (devpriv->high_speed) */ |