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 <tamerlan311@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -136,6 +136,14 @@ exit:
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__func__, result);
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}
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static void metrousb_write_int_callback(struct urb *urb)
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{
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struct usb_serial_port *port = urb->context;
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dev_warn(&port->dev, "%s not implemented yet.\n",
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__func__);
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}
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static void metrousb_cleanup(struct usb_serial_port *port)
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{
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dev_dbg(&port->dev, "%s\n", __func__);
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@ -377,6 +385,7 @@ static struct usb_serial_driver metrousb_device = {
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.open = metrousb_open,
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.close = metrousb_cleanup,
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.read_int_callback = metrousb_read_int_callback,
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.write_int_callback = metrousb_write_int_callback,
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.attach = metrousb_startup,
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.release = metrousb_shutdown,
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.throttle = metrousb_throttle,
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