From 28a4b6a690dfc000e86c8e02a1e1c1a9832252ec Mon Sep 17 00:00:00 2001 From: Aleksey Babahin Date: Tue, 20 Mar 2012 00:46:32 +0400 Subject: [PATCH] USB: serial: metro-usb: dummy implement write_int_callback() function. This function is never called now. Because we don`t send much data to the device, only one byte via usb_interrupt_msg(). That doesn't require callback function. But without declaration of write_int_callback inside the struct usb_serial_driver, the usb_serial_probe doesn't initialize endpoint address for the interrupt out pipe(interrupt_out_endpointAddress). This endpoint is necessary for sending data via usb_interrupt_msg() function. Signed-off-by: Aleksey Babahin Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/metro-usb.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c index 08d16e8c002d..92b6f85ab4b9 100644 --- a/drivers/usb/serial/metro-usb.c +++ b/drivers/usb/serial/metro-usb.c @@ -136,6 +136,14 @@ exit: __func__, result); } +static void metrousb_write_int_callback(struct urb *urb) +{ + struct usb_serial_port *port = urb->context; + + dev_warn(&port->dev, "%s not implemented yet.\n", + __func__); +} + static void metrousb_cleanup(struct usb_serial_port *port) { dev_dbg(&port->dev, "%s\n", __func__); @@ -377,6 +385,7 @@ static struct usb_serial_driver metrousb_device = { .open = metrousb_open, .close = metrousb_cleanup, .read_int_callback = metrousb_read_int_callback, + .write_int_callback = metrousb_write_int_callback, .attach = metrousb_startup, .release = metrousb_shutdown, .throttle = metrousb_throttle, -- 2.30.2