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Viewing changes to libusb1/libusb/os/driver/set_interface.c

  • Committer: Package Import Robot
  • Author(s): Artur Rona
  • Date: 2014-02-12 00:35:39 UTC
  • mfrom: (13.1.24 sid)
  • Revision ID: package-import@ubuntu.com-20140212003539-24tautzlitsiz61w
Tags: 1.5.1-5ubuntu1
https://launchpad.net/bugs/1275572
* Merge from Debian unstable. (LP: #1275572) Remaining changes:
  - debian/control:
    + Build-depend on libtiff-dev rather than libtiff4-dev.
  - debian/control, debian/patches/06_fix_udev_rule.patch:
    + Fix udev rules to actually work; ENV{ACL_MANAGE} has
      stopped working ages ago, and with logind it's now the
      "uaccess" tag. Dropping also consolekit from Recommends.
  - debian/patches/drop-usb-db.patch:
    + Use hwdb builtin, instead of the obsolete usb-db
      in the udev rules.
* debian/patches/05_ftbfs-underlinkage.diff:
  - Dropped change, no needed anymore.
* Refresh the patches.

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libusb1/libusb/os/driver/set_interface.c
1
 
/* LIBUSB-WIN32, Generic Windows USB Library
2
 
 * Copyright (c) 2002-2005 Stephan Meyer <ste_meyer@web.de>
3
 
 *
4
 
 * This program is free software; you can redistribute it and/or modify
5
 
 * it under the terms of the GNU General Public License as published by
6
 
 * the Free Software Foundation; either version 2 of the License, or
7
 
 * (at your option) any later version.
8
 
 *
9
 
 * This program is distributed in the hope that it will be useful,
10
 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11
 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12
 
 * GNU General Public License for more details.
13
 
 *
14
 
 * You should have received a copy of the GNU General Public License
15
 
 * along with this program; if not, write to the Free Software
16
 
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
17
 
 */
18
 
 
19
 
 
20
 
#include "libusb_driver.h"
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22
 
 
23
 
NTSTATUS set_interface(libusb_device_t *dev, int interface, int altsetting,
24
 
                       int timeout)
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{
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  NTSTATUS status = STATUS_SUCCESS;
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  URB *urb;
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  int i, config_size, tmp_size;
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  USB_CONFIGURATION_DESCRIPTOR *configuration_descriptor = NULL;
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  USB_INTERFACE_DESCRIPTOR *interface_descriptor = NULL;
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  USBD_INTERFACE_INFORMATION *interface_information = NULL;
33
 
 
34
 
  DEBUG_PRINT_NL();
35
 
  DEBUG_MESSAGE("set_interface(): interface %d", interface);
36
 
  DEBUG_MESSAGE("set_interface(): altsetting %d", altsetting);
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  DEBUG_MESSAGE("set_interface(): timeout %d", timeout);
38
 
 
39
 
  if(!dev->config.value)
40
 
    {
41
 
      DEBUG_ERROR("release_interface(): device is not configured"); 
42
 
      return STATUS_INVALID_DEVICE_STATE;
43
 
    }
44
 
 
45
 
  configuration_descriptor = get_config_descriptor(dev, dev->config.value, 
46
 
                                                   &config_size);
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  if(!configuration_descriptor)
48
 
    {
49
 
      DEBUG_ERROR("set_interface(): memory_allocation error");
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      return STATUS_NO_MEMORY;
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    }
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  interface_descriptor =
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    find_interface_desc(configuration_descriptor, config_size, 
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                        interface, altsetting);
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57
 
  if(!interface_descriptor)
58
 
    {
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      DEBUG_ERROR("set_interface(): interface %d or altsetting %d invalid", 
60
 
                  interface, altsetting);
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      ExFreePool(configuration_descriptor);
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      return STATUS_UNSUCCESSFUL;
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    }
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65
 
  tmp_size = sizeof(struct _URB_SELECT_INTERFACE)
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    + interface_descriptor->bNumEndpoints
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    * sizeof(USBD_PIPE_INFORMATION);
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69
 
 
70
 
  urb = ExAllocatePool(NonPagedPool, tmp_size);
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72
 
  if(!urb)
73
 
    {
74
 
      DEBUG_ERROR("set_interface(): memory_allocation error");
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      ExFreePool(configuration_descriptor);
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      return STATUS_NO_MEMORY;
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    }
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  memset(urb, 0, tmp_size);
80
 
 
81
 
  urb->UrbHeader.Function = URB_FUNCTION_SELECT_INTERFACE;
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  urb->UrbHeader.Length = (USHORT)tmp_size;
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84
 
  urb->UrbSelectInterface.ConfigurationHandle = dev->config.handle;
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  urb->UrbSelectInterface.Interface.Length =
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    sizeof(struct _USBD_INTERFACE_INFORMATION);
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  urb->UrbSelectInterface.Interface.NumberOfPipes = 
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    interface_descriptor->bNumEndpoints;
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  urb->UrbSelectInterface.Interface.Length +=
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    interface_descriptor->bNumEndpoints 
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    * sizeof(struct _USBD_PIPE_INFORMATION);
92
 
 
93
 
  urb->UrbSelectInterface.Interface.InterfaceNumber = (UCHAR)interface;
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  urb->UrbSelectInterface.Interface.AlternateSetting = (UCHAR)altsetting;
95
 
 
96
 
  interface_information = &urb->UrbSelectInterface.Interface;
97
 
 
98
 
  for(i = 0; i < interface_descriptor->bNumEndpoints; i++)
99
 
    {
100
 
      interface_information->Pipes[i].MaximumTransferSize 
101
 
        = LIBUSB0_MAX_READ_WRITE;
102
 
    }
103
 
 
104
 
  status = call_usbd(dev, urb, IOCTL_INTERNAL_USB_SUBMIT_URB, timeout);
105
 
 
106
 
 
107
 
  if(!NT_SUCCESS(status) || !USBD_SUCCESS(urb->UrbHeader.Status))
108
 
    {
109
 
      DEBUG_ERROR("set_interface(): setting interface failed: status: 0x%x, "
110
 
                  "urb-status: 0x%x", status, urb->UrbHeader.Status);
111
 
      ExFreePool(configuration_descriptor);
112
 
      ExFreePool(urb);
113
 
      return STATUS_UNSUCCESSFUL;
114
 
    }
115
 
 
116
 
  update_pipe_info(dev, interface_information);
117
 
 
118
 
  ExFreePool(configuration_descriptor);
119
 
  ExFreePool(urb);
120
 
 
121
 
  return status;
122
 
}
123