058f:9540 — AU9540 Smartcard Reader
Alcor Micro Corp.
- Vendor ID
- 058f
- Product ID
- 9540
- Combined
- 058f:9540
- Decimal
- 1423:38208
What is this device?
This is the USB identifier for a AU9540 Smartcard Reader manufactured by Alcor Micro Corp.. The vendor ID 058f is registered to Alcor Micro Corp. with the USB Implementers Forum, and 9540 is the product ID that Alcor Micro Corp. assigned to this particular model. When you run lsusb on Linux, this device appears as 058f:9540 Alcor Micro Corp. AU9540 Smartcard Reader.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 058f:9540 Alcor Micro Corp. AU9540 Smartcard Reader
You can filter directly with lsusb -d 058f:9540, or get the full descriptor dump with lsusb -v -d 058f:9540. Kernel messages from dmesg show the same pair as idVendor=058f, idProduct=9540.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_058F&PID_9540 USB\VID_058F&PID_9540&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_058F&PID_9540"
macOS
$ system_profiler SPUSBDataType
AU9540 Smartcard Reader:
Product ID: 0x9540
Vendor ID: 0x058f (Alcor Micro Corp.)Driver help
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.
Raw usb.ids entry
The exact lines this page is generated from, in the upstream source file:
058f Alcor Micro Corp. 9540 AU9540 Smartcard Reader