ADBAPIHANDLE AdbInterfaceObject::CreateHandle() {
// Open USB device for this intefface
HANDLE usb_device_handle = CreateFile(interface_name().c_str(),
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
0,
NULL);
if (INVALID_HANDLE_VALUE == usb_device_handle)
return NULL;
// Now, we ensured that our usb device / interface is up and running.
// Lets collect device, interface and pipe information
bool ok = true;
if (!CacheUsbDeviceDescriptor(usb_device_handle) ||
!CacheUsbConfigurationDescriptor(usb_device_handle) ||
!CacheUsbInterfaceDescriptor(usb_device_handle)) {
ok = false;
}
// Preserve error accross handle close
ULONG error = ok ? NO_ERROR : GetLastError();
::CloseHandle(usb_device_handle);
if (NO_ERROR != error)
SetLastError(error);
if (!ok)
return false;
return AdbObjectHandle::CreateHandle();
}
SDBAPIHANDLE SdbLegacyInterfaceObject::CreateHandle() {
// Open USB device for this intefface
HANDLE usb_device_handle = CreateFile(interface_name().c_str(),
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
0,
NULL);
if (INVALID_HANDLE_VALUE == usb_device_handle) {
return NULL;
}
// Now, we ensured that our usb device / interface is up and running.
// Lets collect device, interface and pipe information
bool ok = true;
if (!CacheUsbDeviceDescriptor(usb_device_handle) ||
!CacheUsbConfigurationDescriptor(usb_device_handle) ||
!CacheUsbInterfaceDescriptor(usb_device_handle)) {
ok = false;
}
// Preserve error accross handle close
ULONG error = ok ? NO_ERROR : GetLastError();
::CloseHandle(usb_device_handle);
if (NO_ERROR != error) {
SetLastError(error);
}
if (!ok) {
return false;
}
// Save indexes and IDs for bulk read / write endpoints. We will use them to
// convert SDB_QUERY_BULK_WRITE_ENDPOINT_INDEX and
// SDB_QUERY_BULK_READ_ENDPOINT_INDEX into actual endpoint indexes and IDs.
for (UCHAR endpoint = 0; endpoint < usb_interface_descriptor_.bNumEndpoints;
endpoint++) {
// Get endpoint information
SdbEndpointInformation pipe_info;
if (!GetEndpointInformation(endpoint, &pipe_info)) {
return false;
}
if (SdbEndpointTypeBulk == pipe_info.endpoint_type) {
// This is a bulk endpoint. Cache its index and ID.
if (0 != (pipe_info.endpoint_address & USB_ENDPOINT_DIRECTION_MASK)) {
// Use this endpoint as default bulk read endpoint
ATLASSERT(0xFF == def_read_endpoint_);
def_read_endpoint_ = endpoint;
read_endpoint_id_ = pipe_info.endpoint_address;
} else {
// Use this endpoint as default bulk write endpoint
ATLASSERT(0xFF == def_write_endpoint_);
def_write_endpoint_ = endpoint;
write_endpoint_id_ = pipe_info.endpoint_address;
}
}
}
return SdbObjectHandle::CreateHandle();
}