MFSH_UNPHYSTOVIRT

Release the selector allocated previously by calling MFSH_PHYSTOVIRT.

Syntax

int far pascal MFSH_UNPHYSTOVIRT(usSel)unsigned short usSel;

Parameters

usSel 

contains the selector to released.

Returns

If no error is detected, a zero error code is returned. If an error is detected, the following error code is returned:

ERROR_PROTECTION_VIOLATION

the supplied selector is invalid.

Sample

unsigned short usSel;

int far pascal MFSH_UNPHYSTOVIRT(usSel)

Remarks

This helper is for use by a mini-FSD with an imbedded device driver. It is the same as the standard device driver UNPHYSTOVIRT helper.

A caller must issue a corresponding UNPHYSTOVIRT after calling PHYSTOVIRT, before returning to its caller or using any other helpers.