staging: line6: adjusted interface of line6_send_program()

Adjusted interface of line6_send_program() to clarify internal working
Signed-off-by: NJohannes Thumshirn <morbidrsa@googlemail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/line6/driver.c

@@ -490,7 +490,7 @@ static void line6_data_received(struct urb *urb)
 /*
 	Send channel number (i.e., switch to a different sound).
 */
-int line6_send_program(struct usb_line6 *line6, int value)
+int line6_send_program(struct usb_line6 *line6, u8 value)
 {
 	int retval;
 	unsigned char *buffer;

drivers/staging/line6/driver.h

@@ -209,7 +209,7 @@ extern int line6_read_data(struct usb_line6 *line6, int address, void *data,
 			   size_t datalen);
 extern int line6_read_serial_number(struct usb_line6 *line6,
 				    int *serial_number);
-extern int line6_send_program(struct usb_line6 *line6, int value);
+extern int line6_send_program(struct usb_line6 *line6, u8 value);
 extern int line6_send_raw_message(struct usb_line6 *line6, const char *buffer,
 				  int size);
 extern int line6_send_raw_message_async(struct usb_line6 *line6,