1d50:511b — SMDK2440 u-boot usbtty CDC ACM mode (OpenMoko, Inc.)

What is this device?

This is the USB identifier for a SMDK2440 u-boot usbtty CDC ACM mode manufactured by OpenMoko, Inc.. The vendor ID 1d50 is registered to OpenMoko, Inc. with the USB Implementers Forum, and 511b is the product ID that OpenMoko, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 1d50:511b OpenMoko, Inc. SMDK2440 u-boot usbtty CDC ACM mode.

How to identify it on your system

Linux

$ lsusb
Bus 001 Device 004: ID 1d50:511b OpenMoko, Inc. SMDK2440 u-boot usbtty CDC ACM mode

You can filter directly with lsusb -d 1d50:511b, or get the full descriptor dump with lsusb -v -d 1d50:511b. Kernel messages from dmesg show the same pair as idVendor=1d50, idProduct=511b.

Windows

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

USB\VID_1D50&PID_511B
USB\VID_1D50&PID_511B&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_1D50&PID_511B"

macOS

$ system_profiler SPUSBDataType
    SMDK2440 u-boot usbtty CDC ACM mode:
      Product ID: 0x511b
      Vendor ID: 0x1d50  (OpenMoko, Inc.)

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:

1d50  OpenMoko, Inc.
	511b  SMDK2440 u-boot usbtty CDC ACM mode

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