From 22f703cab05b7cd368f4de9e03991b7664dc5022 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Mon, 1 Sep 2014 13:56:46 +0200 Subject: Initial import of argyll version 1.5.1-8 --- usb/driver/claim_interface.c | 89 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100644 usb/driver/claim_interface.c (limited to 'usb/driver/claim_interface.c') diff --git a/usb/driver/claim_interface.c b/usb/driver/claim_interface.c new file mode 100644 index 0000000..9ec0fe5 --- /dev/null +++ b/usb/driver/claim_interface.c @@ -0,0 +1,89 @@ +/* libusb-win32, Generic Windows USB Library + * Copyright (c) 2002-2005 Stephan Meyer + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + + + +#include "libusb_driver.h" + + + +NTSTATUS claim_interface(libusb_device_t *dev, FILE_OBJECT *file_object, + int interface) +{ + USBMSG("interface %d\n", interface); + + if (!dev->config.value) + { + USBERR0("device is not configured\n"); + return STATUS_INVALID_DEVICE_STATE; + } + + if (interface >= LIBUSB_MAX_NUMBER_OF_INTERFACES) + { + USBERR("interface number %d too high\n", + interface); + return STATUS_INVALID_PARAMETER; + } + + if (!dev->config.interfaces[interface].valid) + { + USBERR("interface %d does not exist\n", interface); + return STATUS_INVALID_PARAMETER; + } + + if (dev->config.interfaces[interface].file_object == file_object) + { + return STATUS_SUCCESS; + } + + if (dev->config.interfaces[interface].file_object) + { + USBERR("could not claim interface %d, interface is already claimed\n", interface); + return STATUS_DEVICE_BUSY; + } + + dev->config.interfaces[interface].file_object = file_object; + + return STATUS_SUCCESS; +} + +NTSTATUS claim_interface_ex(libusb_device_t *dev, + FILE_OBJECT *file_object, + interface_request_t* interface_request) +{ + PUSB_INTERFACE_DESCRIPTOR interface_descriptor; + + USBMSG("interface-%s=%d\n", + interface_request->intf_use_index ? "index" : "number", + interface_request->intf_use_index ? interface_request->interface_index : interface_request->interface_number); + + if (!dev->config.value || !dev->config.descriptor) + { + USBERR0("device is not configured\n"); + return STATUS_INVALID_DEVICE_STATE; + } + + interface_request->altsetting_index=FIND_INTERFACE_INDEX_ANY; + interface_descriptor = find_interface_desc_ex(dev->config.descriptor,dev->config.total_size,interface_request,NULL); + if (!interface_descriptor) + { + return STATUS_NO_MORE_ENTRIES; + } + + return claim_interface(dev, file_object, interface_descriptor->bInterfaceNumber); +} -- cgit v1.2.3