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

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

drivers/staging/comedi/drivers/usbdux.c

+0 −9
Original line number Diff line number Diff line
@@ -1445,14 +1445,6 @@ static int usbdux_pwm_write(struct comedi_device *dev, 
	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 */

static int usbdux_pwm_config(struct comedi_device *dev,

			     struct comedi_subdevice *s,
@@ -1819,7 +1811,6 @@ static int usbdux_auto_attach(struct comedi_device *dev, 
		s->n_chan	= 8;

		s->maxdata	= devpriv->pwm_buf_sz;

		s->insn_write	= usbdux_pwm_write;

		s->insn_read	= usbdux_pwm_read;

		s->insn_config	= usbdux_pwm_config;



		usbdux_pwm_period(dev, s, PWM_DEFAULT_PERIOD);