Sandisk SDDR-55 SmartMedia Card Reader

USB ID 55aa:a103 · OnSpec Electronic, Inc.

VendorOnSpec Electronic, Inc.
Vendor ID55aa
Device IDa103
Windows hardware IDUSB\VID_55AA&PID_A103
Linux modaliasusb:v55AApA103
Linux driverums_sddr55

Frequently asked questions

Which device has USB ID 55aa:a103?

USB ID 55aa:a103 is “Sandisk SDDR-55 SmartMedia Card Reader” made by OnSpec Electronic, Inc. (vendor ID 55aa, device ID a103).

Which Linux driver supports Sandisk SDDR-55 SmartMedia Card Reader?

In Linux kernel 6.12 the device is bound to the driver ums_sddr55 (source under drivers/usb/storage). The driver is normally loaded automatically when the device is detected.

How do I check whether Sandisk SDDR-55 SmartMedia Card Reader is in my computer?

On Linux, lsusb -d 55aa:a103 shows the device if it is present. On Windows, open Device Manager, then Properties → Details → Hardware Ids; it appears as USB\VID_55AA&PID_A103.

How do I see which driver is currently in use?

lsusb -t prints the device tree with the bound driver (Driver=…) for each interface.

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