When configured as a USB mass storage device, can the SD_CARD be made read only?

Technical Support
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1

Using WEC 7.0, Colibri T30 with USB configured for the SD card visible externally as a mass storage device:

Is it possible to configure it to be writable by an application when the USB is not active and the SD_CARD is available internally, but read only to an external PC, when visible externally via USB as a mass storage devcice ?

This is to protect files on the device so that they cannot be altered or deleted from the external PC.

2

Currently there is no such feature available. All the availabe settings can be found on MSDN (USB Function Client Driver Registry Settings (Compact 2013) | Microsoft Learn) .

Some ideas:

  • Manually protect some files by setting them read only when attaching the device.
  • Rewrite the driver, which you find here WINCE700\public\COMMON\oak\drivers\usb\class\storage$
3

Thanks for the reply.