OnSpec MMC/SD Reader/Writer
USB ID 55aa:b004 · OnSpec Electronic, Inc.
| Vendor | OnSpec Electronic, Inc. |
|---|---|
| Vendor ID | 55aa |
| Device ID | b004 |
| Windows hardware ID | USB\VID_55AA&PID_B004 |
| Linux modalias | usb:v55AApB004 |
| Linux driver | no driver with exact ID |
Frequently asked questions
Which device has USB ID 55aa:b004?
USB ID 55aa:b004 is “OnSpec MMC/SD Reader/Writer” made by OnSpec Electronic, Inc. (vendor ID 55aa, device ID b004).
Which Linux driver supports OnSpec MMC/SD Reader/Writer?
Linux kernel 6.12 lists no driver for this exact ID. Most USB devices (keyboards, mice, storage, webcams, audio) still work through generic class drivers such as usbhid, usb-storage, uvcvideo or snd-usb-audio. Overview of device classes and their drivers
How do I check whether OnSpec MMC/SD Reader/Writer is in my computer?
On Linux, lsusb -d 55aa:b004 shows the device if it is present. On Windows, open Device Manager, then Properties → Details → Hardware Ids; it appears as USB\VID_55AA&PID_B004.
How do I see which driver is currently in use?
lsusb -t prints the device tree with the bound driver (Driver=…) for each interface.
Nearby entries
- 0102 – SuperDisk
- 0103 – IDE Hard Drive
- 0201 – DDI to Reader-19
- 1234 – ATAPI Bridge
- a103 – Sandisk SDDR-55 SmartMedia Card Reader
- b000 – USB to CompactFlash Card Reader
- b00b – USB to Memory Stick Card Reader
- b00c – USB to SmartMedia Card Reader
- b012 – Mitsumi FA402M 8-in-2 Card Reader
- b200 – Compact Flash Reader
- b204 – MMC/ SD Reader
- b207 – Memory Stick Reader