diff options
Diffstat (limited to 'usb/driver/get_status.c')
-rw-r--r-- | usb/driver/get_status.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/usb/driver/get_status.c b/usb/driver/get_status.c new file mode 100644 index 0000000..2e77f91 --- /dev/null +++ b/usb/driver/get_status.c @@ -0,0 +1,74 @@ +/* libusb-win32, Generic Windows USB Library + * Copyright (c) 2002-2005 Stephan Meyer <ste_meyer@web.de> + * + * 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 get_status(libusb_device_t *dev, int recipient, + int index, char *status, int *ret, int timeout) +{ + NTSTATUS _status = STATUS_SUCCESS; + URB urb; + + USBMSG("recipient: %02d index: %04d timeout: %d\n", + recipient, index, timeout); + + memset(&urb, 0, sizeof(URB)); + + switch (recipient) + { + case USB_RECIP_DEVICE: + urb.UrbHeader.Function = URB_FUNCTION_GET_STATUS_FROM_DEVICE; + break; + case USB_RECIP_INTERFACE: + urb.UrbHeader.Function = URB_FUNCTION_GET_STATUS_FROM_INTERFACE; + break; + case USB_RECIP_ENDPOINT: + urb.UrbHeader.Function = URB_FUNCTION_GET_STATUS_FROM_ENDPOINT; + break; + case USB_RECIP_OTHER: + urb.UrbHeader.Function = URB_FUNCTION_GET_STATUS_FROM_OTHER; + break; + default: + USBERR0("invalid recipient\n"); + return STATUS_INVALID_PARAMETER; + } + + urb.UrbHeader.Length = sizeof(struct _URB_CONTROL_GET_STATUS_REQUEST); + urb.UrbControlGetStatusRequest.TransferBufferLength = 2; + urb.UrbControlGetStatusRequest.TransferBuffer = status; + urb.UrbControlGetStatusRequest.Index = (USHORT)index; + + _status = call_usbd(dev, &urb, IOCTL_INTERNAL_USB_SUBMIT_URB, timeout); + + if (!NT_SUCCESS(_status) || !USBD_SUCCESS(urb.UrbHeader.Status)) + { + USBERR("getting status failed: status: 0x%x, urb-status: 0x%x\n", + _status, urb.UrbHeader.Status); + *ret = 0; + } + else + { + *ret = urb.UrbControlGetStatusRequest.TransferBufferLength; + } + + return _status; +} + |