Hwid 어떻게 - hwid eotteohge

How do I get hwid in linux operating system with python?

subprocess.Popen('hal-get-property --udi /org/freedesktop/Hal/devices/computer --key system.hardware.uuid'.split())

This is not working:

FileNotFoundError: [Errno 2] No such file or directory: 'hal-get-property'

Charles Duffy

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asked Apr 1 at 17:38

10

Solved!

hw = subprocess.check_output(['cat', '/etc/machine-id'])

or hw = subprocess.check_output(['sudo','cat','/sys/class/dmi/id/product_uuid']).decode().strip()

answered Apr 2 at 8:42

How to change device HWID?

If I understood correctly I need to set a field in the JSON file, but I can't find any documentation what the field is actually called.

Edit: Solved:

First the device must be in bootloader mode (MCU LED will blink red):

lighthouse_watchman_update.exe -bw3

Then set the HWID:

lighthouse_watchman_update.exe -Bw3 0x90030006

The last byte is the sensor type. 0x4 = legacy sensors, 0x6 = 2.0 sensors

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Hardware ID

• Article
• 04/08/2022
• 2 minutes to read

In this article

A hardware ID is a vendor-defined identification string that Windows uses to match a device to a driver package. A hardware ID identifies what a device is to some level of specificity and is indicating that any driver package that declares it can work with a device that has that ID can work with this device for some degree of functionality. In most cases, a device has more than one hardware ID associated with it. Typically, a list of hardware IDs is sorted from most to least suitable for a device. For example, the list of conceptual hardware IDs for a device might look like:

<Product X made by company Y with firmware revision Z>
<Product X made by company Y that is a device of type W>

Where the actual hardware IDs would represent those concepts using strings that follow the format requirements of a hardware ID.

Creating a hardware ID for a device

Hardware IDs are reported to the Plug and Play Manager (PnP) by a device's enumerator (its bus driver). Typically, when the author of a bus driver needs to create a new hardware ID for a device it will report to PnP, it will use one of the following generic formats:

<enumerator>\<enumerator-specific-device-ID>

This is the most common format for individual PnP devices reported to the Plug and Play (PnP) manager by a single enumerator.

\*<generic-device-ID>

The asterisk indicates that the device is supported by more than one enumerator, such as ISAPNP and the BIOS.

<device-class-specific-ID>

For more information, see Generic Identifiers.

An existing device class that has established its own naming convention might use a custom format. For information about their hardware ID formats, see the hardware specification for such buses.

The number of characters of a hardware ID, excluding a NULL terminator, must be less than MAX_DEVICE_ID_LEN. This constraint applies to the sum of the lengths of all the fields and any \\ field separators in a hardware ID. For more information, see the Operations section of IRP_MN_QUERY_ID.

Hardware IDs for root enumerated devices

Root enumerated devices are special in that they can be created using APIs where a hardware ID can be provided. Root enumerated devices with hardware IDs sharing generic namespaces such as ROOT\SYSTEM may conflict and result in an yellow-bang error icon in Device Manager when updating Windows.

You can prevent this by using a unique namespace for each driver that has a root enumerated device. For a USB or system device, instead of using ROOT\USB or ROOT\SYSTEM" use ROOT\[COMPANYNAME]\[DEVICENAME]. Then, before installing, check to see if the devnode is already present.

Obtaining the list of hardware IDs for a device

To find the list of hardware IDs for a given device, follow these steps:

1. Open Device Manager.

2. Find the device in the tree.

3. Right-click the device and select Properties.

4. Select the Details tab.

5. In the Property drop-down, select Hardware Ids or Compatible Ids.

The list of hardware IDs can also be obtained programmatically by retrieving the DEVPKEY_Device_HardwareIds property on a device. For example, that property can be retrieved with APIs such as IoGetDevicePropertyData, SetupDiGetDeviceProperty, or CM_Get_DevNode_Property.

The list of hardware IDs that this routine retrieves is a REG_MULTI_SZ value. The maximum number of characters in a hardware list, including a NULL terminator after each hardware ID and a final NULL terminator, is REGSTR_VAL_MAX_HCID_LEN. The maximum possible number of IDs in a list of hardware IDs is 64.

Examples of Hardware IDs

Here is an example of a generic identifier for a PnP device:

root\*PNP0F08

Here is an example of an identifier for a PCI device:

PCI\VEN_1000&DEV_0001&SUBSYS_00000000&REV_02