From 64ffc665d7172ce9f13b6ad5fca107e8847d68d1 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 29 Jul 2013 17:45:09 -0700 Subject: [PATCH] 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: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/usbdux.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/drivers/staging/comedi/drivers/usbdux.c b/drivers/staging/comedi/drivers/usbdux.c index 214a49f23ec5..9f97e3e1f1c6 100644 --- a/drivers/staging/comedi/drivers/usbdux.c +++ b/drivers/staging/comedi/drivers/usbdux.c @@ -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);