staging: line6: drop variax active sysfs attr
The get_string() function has no other callers so remove it too. Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -275,38 +275,6 @@ void line6_variax_process_message(struct usb_line6_variax *variax)
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}
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}
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/*
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"read" request on "active" special file.
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*/
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static ssize_t variax_get_active(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct usb_line6_variax *variax =
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usb_get_intfdata(to_usb_interface(dev));
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return sprintf(buf, "%d\n",
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variax->buffer_activate[VARIAX_OFFSET_ACTIVATE]);
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}
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/*
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"write" request on "active" special file.
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*/
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static ssize_t variax_set_active(struct device *dev,
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struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct usb_line6_variax *variax =
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usb_get_intfdata(to_usb_interface(dev));
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u8 value;
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int ret;
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ret = kstrtou8(buf, 10, &value);
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if (ret)
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return ret;
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variax_activate_async(variax, value ? 1 : 0);
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return count;
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}
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/*
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"read" request on "guitar" special file.
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*/
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@ -366,8 +334,6 @@ static ssize_t variax_set_raw2(struct device *dev,
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#endif
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/* Variax workbench special files: */
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static DEVICE_ATTR(active, S_IWUSR | S_IRUGO, variax_get_active,
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variax_set_active);
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static DEVICE_ATTR(guitar, S_IRUGO, variax_get_guitar, line6_nop_write);
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#ifdef CONFIG_LINE6_USB_RAW
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@ -404,7 +370,6 @@ static void variax_destruct(struct usb_interface *interface)
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static int variax_create_files2(struct device *dev)
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{
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int err;
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CHECK_RETURN(device_create_file(dev, &dev_attr_active));
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CHECK_RETURN(device_create_file(dev, &dev_attr_guitar));
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#ifdef CONFIG_LINE6_USB_RAW
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CHECK_RETURN(device_create_file(dev, &dev_attr_raw));
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@ -504,7 +469,6 @@ void line6_variax_disconnect(struct usb_interface *interface)
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if (dev != NULL) {
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/* remove sysfs entries: */
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line6_variax_remove_files(0, 0, dev);
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device_remove_file(dev, &dev_attr_active);
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device_remove_file(dev, &dev_attr_guitar);
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#ifdef CONFIG_LINE6_USB_RAW
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device_remove_file(dev, &dev_attr_raw);
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