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windows: Add Windows-specific API to get device container ID (#379)

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Frederik Seiffert 2022-02-25 09:53:00 +01:00 committed by GitHub
parent e08ddcee5f
commit 2cfd63ac41
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3 changed files with 94 additions and 0 deletions
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38
windows/hid.c
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@ -1048,6 +1048,44 @@ int HID_API_EXPORT_CALL HID_API_CALL hid_get_indexed_string(hid_device *dev, int
return 0;
}
int HID_API_EXPORT_CALL hid_winapi_get_container_id(hid_device *dev, GUID *container_id)
{
wchar_t *interface_path = NULL, *device_id = NULL;
CONFIGRET cr = CR_FAILURE;
DEVINST dev_node;
DEVPROPTYPE property_type;
ULONG len;
if (!container_id)
return -1;
interface_path = hid_internal_UTF8toUTF16(dev->device_info->path);
if (!interface_path)
goto end;
/* Get the device id from interface path */
device_id = hid_internal_get_device_interface_property(interface_path, &DEVPKEY_Device_InstanceId, DEVPROP_TYPE_STRING);
if (!device_id)
goto end;
/* Open devnode from device id */
cr = CM_Locate_DevNodeW(&dev_node, (DEVINSTID_W)device_id, CM_LOCATE_DEVNODE_NORMAL);
if (cr != CR_SUCCESS)
goto end;
/* Get the container id from devnode */
len = sizeof(*container_id);
cr = CM_Get_DevNode_PropertyW(dev_node, &DEVPKEY_Device_ContainerId, &property_type, (PBYTE)container_id, &len, 0);
if (cr == CR_SUCCESS && property_type != DEVPROP_TYPE_GUID)
cr = CR_FAILURE;
end:
free(interface_path);
free(device_id);
return cr == CR_SUCCESS ? 0 : -1;
}
HID_API_EXPORT const wchar_t * HID_API_CALL hid_error(hid_device *dev)
{

2
windows/hidapi_cfgmgr32.h
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@ -40,6 +40,7 @@ typedef WCHAR* DEVNODEID_W, * DEVINSTID_W;
#define CR_SUCCESS (0x00000000)
#define CR_BUFFER_SMALL (0x0000001A)
#define CR_FAILURE (0x00000013)
#define CM_LOCATE_DEVNODE_NORMAL 0x00000000
@ -57,6 +58,7 @@ static DEVPROPKEY DEVPKEY_NAME = { { 0xb725f130, 0x47ef, 0x101a, 0xa5, 0xf1, 0x0
static DEVPROPKEY DEVPKEY_Device_InstanceId = { { 0x78c34fc8, 0x104a, 0x4aca, 0x9e, 0xa4, 0x52, 0x4d, 0x52, 0x99, 0x6e, 0x57 }, 256 }; // DEVPROP_TYPE_STRING
static DEVPROPKEY DEVPKEY_Device_HardwareIds = { { 0xa45c254e, 0xdf1c, 0x4efd, 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0}, 3 }; // DEVPROP_TYPE_STRING_LIST
static DEVPROPKEY DEVPKEY_Device_CompatibleIds = { { 0xa45c254e, 0xdf1c, 0x4efd, 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0}, 4 }; // DEVPROP_TYPE_STRING_LIST
static DEVPROPKEY DEVPKEY_Device_ContainerId = { { 0x8c7ed206, 0x3f8a, 0x4827, 0xb3, 0xab, 0xae, 0x9e, 0x1f, 0xae, 0xfc, 0x6c}, 2 }; // DEVPROP_TYPE_GUID
// from propkey.h
static PROPERTYKEY PKEY_DeviceInterface_Bluetooth_DeviceAddress = { { 0x2bd67d8b, 0x8beb, 0x48d5, 0x87, 0xe0, 0x6c, 0xda, 0x34, 0x28, 0x04, 0x0a }, 1 }; // DEVPROP_TYPE_STRING

54
windows/hidapi_winapi.h Normal file
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@ -0,0 +1,54 @@
/*******************************************************
HIDAPI - Multi-Platform library for
communication with HID devices.
libusb/hidapi Team
Copyright 2022, All Rights Reserved.
At the discretion of the user of this library,
this software may be licensed under the terms of the
GNU General Public License v3, a BSD-Style license, or the
original HIDAPI license as outlined in the LICENSE.txt,
LICENSE-gpl3.txt, LICENSE-bsd.txt, and LICENSE-orig.txt
files located at the root of the source distribution.
These files may also be found in the public source
code repository located at:
https://github.com/libusb/hidapi .
********************************************************/
/** @file
* @defgroup API hidapi API
*/
#ifndef HIDAPI_WINAPI_H__
#define HIDAPI_WINAPI_H__
#include <guiddef.h>
#include "hidapi.h"
#ifdef __cplusplus
extern "C" {
#endif
/** @brief Get the container ID for a HID device.
This function returns the `DEVPKEY_Device_ContainerId` property of
the given device. This can be used to correlate different
interfaces/ports on the same hardware device.
@ingroup API
@param dev A device handle returned from hid_open().
@param guid The device's container ID on return.
@returns
This function returns 0 on success and -1 on error.
*/
int HID_API_EXPORT_CALL hid_winapi_get_container_id(hid_device *dev, GUID *container_id);
#ifdef __cplusplus
}
#endif
#endif