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#ZYXEL FIRMWARE UPDATE DOWNLOAD HOW TO#
#ZYXEL FIRMWARE UPDATE DOWNLOAD INSTALL#
#ZYXEL FIRMWARE UPDATE DOWNLOAD WINDOWS#

There are a couple ways to create a second device node. In this case, the function and firmware device nodes must have different hardware IDs in order to be targeted independently. The following diagram shows how one device can have two separate device nodes:

#ZYXEL FIRMWARE UPDATE DOWNLOAD INSTALL#

The existing function driver can implement the firmware update mechanism, as shown in the following diagram:Īlternatively, if you want to update the function driver and the firmware update driver separately, create a second device node, on which you will install the firmware update driver. Adding firmware update logic to a vendor-supplied driver Submit your firmware update package as a separate driver submission. Typically, the firmware update driver package contains the following:

When conditions are met, perform the firmware update on the device.

If an update is queued, wait for a set of conditions to be met.

Otherwise, do nothing until the driver is started again.

If a firmware update is necessary, set an event timer to schedule the update.

Determine whether the driver has a firmware version that is more recent than the version on the firmware currently flashed on device hardware.

Identify the device to which it is attached.

Typically, the firmware update driver is a lightweight device driver that does the following:Īt device start or in the driver's EVT_WDF_DRIVER_DEVICE_ADD callback function:

#ZYXEL FIRMWARE UPDATE DOWNLOAD WINDOWS#

The driver binary can use KMDF, UMDF 2 or the Windows Driver Model.īecause WU cannot execute software, the firmware update driver must hand the firmware to Plug and Play (PnP) for installation. For more info about universal drivers, see Getting Started with Windows Drivers.

In both cases, the firmware update driver package must be universal. If your device uses a Microsoft-supplied driver, you must provide a separate firmware update driver package. If your device uses a vendor-supplied driver, you have the option of adding the firmware update logic and payload to your existing function driver, or providing a separate firmware update driver package. To do this, you'll provide an update mechanism, implemented as a device driver, that includes the firmware payload. For information about updating system firmware, see Windows UEFI firmware update platform.

#ZYXEL FIRMWARE UPDATE DOWNLOAD HOW TO#

This topic describes how to update a removable or in-chassis device's firmware using the Windows Update (WU) service.