[PATCH 04/18] staging: comedi: usbdux: tidy up usbdux_pwm_period()
H Hartley Sweeten
hsweeten at visionengravers.com
Tue Jul 30 00:44:14 UTC 2013
Rename the local variable used for the private data pointer to 'devpriv'.
Fix the fx2delay calculation so it does not use floating point values.
Signed-off-by: H Hartley Sweeten <hsweeten at visionengravers.com>
Cc: Ian Abbott <abbotti at mev.co.uk>
Cc: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
---
drivers/staging/comedi/drivers/usbdux.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/staging/comedi/drivers/usbdux.c b/drivers/staging/comedi/drivers/usbdux.c
index bf6c9ff..0683c8e 100644
--- a/drivers/staging/comedi/drivers/usbdux.c
+++ b/drivers/staging/comedi/drivers/usbdux.c
@@ -1347,20 +1347,21 @@ static int usbduxsub_submit_pwm_urbs(struct comedi_device *dev)
}
static int usbdux_pwm_period(struct comedi_device *dev,
- struct comedi_subdevice *s, unsigned int period)
+ struct comedi_subdevice *s,
+ unsigned int period)
{
- struct usbdux_private *this_usbduxsub = dev->private;
+ struct usbdux_private *devpriv = dev->private;
int fx2delay = 255;
if (period < MIN_PWM_PERIOD) {
return -EAGAIN;
} else {
- fx2delay = period / ((int)(6 * 512 * (1.0 / 0.033))) - 6;
+ fx2delay = (period / (6 * 512 * 1000 / 33)) - 6;
if (fx2delay > 255)
return -EAGAIN;
}
- this_usbduxsub->pwm_delay = fx2delay;
- this_usbduxsub->pwm_period = period;
+ devpriv->pwm_delay = fx2delay;
+ devpriv->pwm_period = period;
return 0;
}
--
1.8.3.2
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