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Allow more than one USB controller

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svn path=/trunk/; revision=20323
This commit is contained in:
Hervé Poussineau
2005-12-24 17:56:23 +00:00
parent 1a9be1b9ef
commit 4d21beb957
1 changed files with 28 additions and 12 deletions
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reactos/drivers/usb/miniport/common/main.c
+28 -12
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@@ -197,7 +197,8 @@ AddDevice(
UNICODE_STRING LinkDeviceName;
PUSBMP_DRIVER_EXTENSION DriverExtension;
PUSBMP_DEVICE_EXTENSION DeviceExtension;
ULONG DeviceNumber;
static ULONG DeviceNumber = 0;
BOOL AlreadyRestarted = FALSE;
// Allocate driver extension now
DriverExtension = IoGetDriverObjectExtension(DriverObject, DriverObject);
@@ -216,18 +217,33 @@ AddDevice(
}
}
// Create a unicode device name
DeviceNumber = 0; //TODO: Allocate new device number every time
swprintf(DeviceBuffer, L"\\Device\\USBFDO-%lu", DeviceNumber);
RtlInitUnicodeString(&DeviceName, DeviceBuffer);
/* Create a unicode device name. Allocate a new device number every time */
do
{
DeviceNumber++;
if (DeviceNumber == 9999)
{
/* Hmm. We don't have a free number. */
if (AlreadyRestarted)
{
Status = STATUS_UNSUCCESSFUL;
break;
}
/* Start again at DeviceNumber = 0 to find a free number */
DeviceNumber = 0;
AlreadyRestarted = TRUE;
}
swprintf(DeviceBuffer, L"\\Device\\USBFDO-%lu", DeviceNumber);
RtlInitUnicodeString(&DeviceName, DeviceBuffer);
Status = IoCreateDevice(DriverObject,
sizeof(USBMP_DEVICE_EXTENSION),
&DeviceName,
FILE_DEVICE_BUS_EXTENDER,
0,
FALSE,
&fdo);
Status = IoCreateDevice(DriverObject,
sizeof(USBMP_DEVICE_EXTENSION),
&DeviceName,
FILE_DEVICE_BUS_EXTENDER,
0,
FALSE,
&fdo);
} while (Status == STATUS_OBJECT_NAME_COLLISION);
if (!NT_SUCCESS(Status))
{