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5620b5f7f1
This patch (as1443) fixes a bug found in many of the USB serial drivers: They don't set the .usb_driver field in their usb_serial_driver structure. This field is needed for assigning dynamic IDs for device matching. In addition, starting with the 2.6.37 kernel, the .usb_driver field is needed for proper autosuspend operation. Without it, attempts to open the device file will fail. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: Dan Williams <dcbw@redhat.com> CC: <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
79 lines
2.0 KiB
C
79 lines
2.0 KiB
C
/*
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* Siemens USB-MPI Serial USB driver
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*
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* Copyright (C) 2005 Thomas Hergenhahn <thomas.hergenhahn@suse.de>
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* Copyright (C) 2005,2008 Greg Kroah-Hartman <gregkh@suse.de>
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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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/* Version Information */
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#define DRIVER_VERSION "Version 0.1 09/26/2005"
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#define DRIVER_AUTHOR "Thomas Hergenhahn@web.de http://libnodave.sf.net"
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#define DRIVER_DESC "Driver for Siemens USB/MPI adapter"
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static const struct usb_device_id id_table[] = {
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/* Vendor and product id for 6ES7-972-0CB20-0XA0 */
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{ USB_DEVICE(0x908, 0x0004) },
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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 siemens_usb_mpi_driver = {
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.name = "siemens_mpi",
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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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};
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static struct usb_serial_driver siemens_usb_mpi_device = {
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.driver = {
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.owner = THIS_MODULE,
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.name = "siemens_mpi",
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},
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.id_table = id_table,
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.usb_driver = &siemens_usb_mpi_driver,
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.num_ports = 1,
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};
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static int __init siemens_usb_mpi_init(void)
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{
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int retval;
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retval = usb_serial_register(&siemens_usb_mpi_device);
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if (retval)
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goto failed_usb_serial_register;
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retval = usb_register(&siemens_usb_mpi_driver);
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if (retval)
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goto failed_usb_register;
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printk(KERN_INFO DRIVER_DESC "\n");
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printk(KERN_INFO DRIVER_VERSION " " DRIVER_AUTHOR "\n");
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return retval;
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failed_usb_register:
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usb_serial_deregister(&siemens_usb_mpi_device);
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failed_usb_serial_register:
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return retval;
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}
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static void __exit siemens_usb_mpi_exit(void)
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{
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usb_deregister(&siemens_usb_mpi_driver);
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usb_serial_deregister(&siemens_usb_mpi_device);
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}
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module_init(siemens_usb_mpi_init);
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module_exit(siemens_usb_mpi_exit);
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MODULE_AUTHOR(DRIVER_AUTHOR);
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL");
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