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setupapi: Add helper function to open a device's hardware key.

This commit is contained in:
Juan Lang 2007-10-11 13:24:42 -07:00 committed by Alexandre Julliard
parent e6a9eb6b85
commit 22724c2c8b
1 changed files with 18 additions and 9 deletions
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27
dlls/setupapi/devinst.c
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@ -407,6 +407,22 @@ static BOOL SETUPDI_SetInterfaceSymbolicLink(SP_DEVICE_INTERFACE_DATA *iface,
return ret;
}
static HKEY SETUPDI_CreateDevKey(struct DeviceInfo *devInfo)
{
HKEY enumKey, key = INVALID_HANDLE_VALUE;
LONG l;
l = RegCreateKeyExW(HKEY_LOCAL_MACHINE, Enum, 0, NULL, 0, KEY_ALL_ACCESS,
NULL, &enumKey, NULL);
if (!l)
{
RegCreateKeyExW(enumKey, devInfo->instanceId, 0, NULL, 0,
KEY_READ | KEY_WRITE, NULL, &key, NULL);
RegCloseKey(enumKey);
}
return key;
}
static struct DeviceInfo *SETUPDI_AllocateDeviceInfo(struct DeviceInfoSet *set,
LPCWSTR instanceId, BOOL phantom)
{
@ -420,23 +436,16 @@ static struct DeviceInfo *SETUPDI_AllocateDeviceInfo(struct DeviceInfoSet *set,
(lstrlenW(instanceId) + 1) * sizeof(WCHAR));
if (devInfo->instanceId)
{
HKEY enumKey;
LONG l;
devInfo->key = INVALID_HANDLE_VALUE;
devInfo->phantom = phantom;
lstrcpyW(devInfo->instanceId, instanceId);
struprW(devInfo->instanceId);
l = RegCreateKeyExW(HKEY_LOCAL_MACHINE, Enum, 0, NULL, 0,
KEY_ALL_ACCESS, NULL, &enumKey, NULL);
if (!l)
devInfo->key = SETUPDI_CreateDevKey(devInfo);
if (devInfo->key != INVALID_HANDLE_VALUE)
{
RegCreateKeyExW(enumKey, devInfo->instanceId, 0, NULL, 0,
KEY_ALL_ACCESS, NULL, &devInfo->key, NULL);
if (phantom)
RegSetValueExW(devInfo->key, Phantom, 0, REG_DWORD,
(LPBYTE)&phantom, sizeof(phantom));
RegCloseKey(enumKey);
}
list_init(&devInfo->interfaces);
}