Commit 64ffc665 authored by H Hartley Sweeten's avatar H Hartley Sweeten Committed by Greg Kroah-Hartman

staging: comedi: usbdux: remove usbdux_pwm_read()

The pwm subdevice is not readable so this callback function is not
needed. Remove it.
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 5c63f094
...@@ -1445,14 +1445,6 @@ static int usbdux_pwm_write(struct comedi_device *dev, ...@@ -1445,14 +1445,6 @@ static int usbdux_pwm_write(struct comedi_device *dev,
return usbdux_pwm_pattern(dev, s, chan, data[0], 0); return usbdux_pwm_pattern(dev, s, chan, data[0], 0);
} }
static int usbdux_pwm_read(struct comedi_device *x1,
struct comedi_subdevice *x2, struct comedi_insn *x3,
unsigned int *x4)
{
/* not needed */
return -EINVAL;
};
/* switches on/off PWM */ /* switches on/off PWM */
static int usbdux_pwm_config(struct comedi_device *dev, static int usbdux_pwm_config(struct comedi_device *dev,
struct comedi_subdevice *s, struct comedi_subdevice *s,
...@@ -1819,7 +1811,6 @@ static int usbdux_auto_attach(struct comedi_device *dev, ...@@ -1819,7 +1811,6 @@ static int usbdux_auto_attach(struct comedi_device *dev,
s->n_chan = 8; s->n_chan = 8;
s->maxdata = devpriv->pwm_buf_sz; s->maxdata = devpriv->pwm_buf_sz;
s->insn_write = usbdux_pwm_write; s->insn_write = usbdux_pwm_write;
s->insn_read = usbdux_pwm_read;
s->insn_config = usbdux_pwm_config; s->insn_config = usbdux_pwm_config;
usbdux_pwm_period(dev, s, PWM_DEFAULT_PERIOD); usbdux_pwm_period(dev, s, PWM_DEFAULT_PERIOD);
......
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