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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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958e8741bf
It's a simple usb-serial driver that just creates a tty device to read and write from. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
/*
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* USB Debug cable driver
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*
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* Copyright (C) 2006 Greg Kroah-Hartman <greg@kroah.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version
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* 2 as published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/tty.h>
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#include <linux/module.h>
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#include <linux/usb.h>
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#include <linux/usb/serial.h>
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static struct usb_device_id id_table [] = {
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{ USB_DEVICE(0x0525, 0x127a) },
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{ },
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};
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MODULE_DEVICE_TABLE(usb, id_table);
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static struct usb_driver debug_driver = {
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.name = "debug",
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.probe = usb_serial_probe,
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.disconnect = usb_serial_disconnect,
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.id_table = id_table,
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.no_dynamic_id = 1,
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};
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static struct usb_serial_driver debug_device = {
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.driver = {
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.owner = THIS_MODULE,
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.name = "debug",
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},
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.id_table = id_table,
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.num_interrupt_in = NUM_DONT_CARE,
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.num_bulk_in = NUM_DONT_CARE,
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.num_bulk_out = NUM_DONT_CARE,
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.num_ports = 1,
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};
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static int __init debug_init(void)
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{
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int retval;
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retval = usb_serial_register(&debug_device);
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if (retval)
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return retval;
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retval = usb_register(&debug_driver);
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if (retval)
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usb_serial_deregister(&debug_device);
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return retval;
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}
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static void __exit debug_exit(void)
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{
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usb_deregister(&debug_driver);
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usb_serial_deregister(&debug_device);
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}
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module_init(debug_init);
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module_exit(debug_exit);
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MODULE_LICENSE("GPL");
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