05d9:a794 — A794 Printer

This is the USB identifier for a A794 Printer manufactured by Axiohm Transaction Solutions. The vendor ID 05d9 is registered to Axiohm Transaction Solutions with the USB Implementers Forum, and a794 is the product ID that Axiohm Transaction Solutions assigned to this particular model. When you run lsusb on Linux, this device appears as 05d9:a794 Axiohm Transaction Solutions A794 Printer.

Linux

$ lsusb
Bus 001 Device 004: ID 05d9:a794 Axiohm Transaction Solutions A794 Printer

You can filter directly with lsusb -d 05d9:a794, or get the full descriptor dump with lsusb -v -d 05d9:a794. Kernel messages from dmesg show the same pair as idVendor=05d9, idProduct=a794.

Windows

In Device Manager, open the device, go to Details → Hardware Ids. This device reports:

USB\VID_05D9&PID_A794
USB\VID_05D9&PID_A794&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_05D9&PID_A794"

macOS

$ system_profiler SPUSBDataType
    A794 Printer:
      Product ID: 0xa794
      Vendor ID: 0x05d9  (Axiohm Transaction Solutions)

Having driver issues with this device? Most USB devices are handled by a generic class driver; if yours shows up as an unknown device, confirm the ID above first, then check the manufacturer's downloads page.

The exact lines this page is generated from, in the upstream source file:

05d9  Axiohm Transaction Solutions
	a794  A794 Printer

• 05d9:a225 A225 Printer
• 05d9:a758 A758 Printer

See all 3 devices from Axiohm Transaction Solutions →