DosSetFSInfo

Bindings:  C, MASM 
This call sets information for a file system device. 

 DosSetFSInfo     (DriveNumber, FSInfoLevel, FSInfoBuf, FSInfoBufSize) 
 

 DriveNumber (USHORT) - input 
    Logical drive number, for example, 0 = default and 1 = A, and the FSD 
    for the media currently in that drive. A value of '0xFFFF' notes that 
    FSInfoBuf contains the ASCIIZ path name of the FSD. 

 FSInfoLevel (USHORT) - input 
    Level of file information to be set. A value of 2 is the only valid 
    value for FSInfoLevel. 

 FSInfoBuf (PBYTE) - input 
    Address of the storage area where the system gets the new file system 
    information. 

    Level 2 Information 
       Level 2 information is specified in the following format: 

       Byte      Description 
       1         Length of Volume Label (null not included) 
       2-N       Volume Label ASCIIZ string. 

 FSInfoBufSize (USHORT) - input 
    Length of FSInfoBuf. 

 rc (USHORT) - return 
    Return code descriptions are: 

    0         NO_ERROR 
    15        ERROR_INVALID_DRIVE 
    82        ERROR_CANNOT_MAKE 
    122       ERROR_INSUFFICIENT_BUFFER 
    123       ERROR_INVALID_NAME 
    124       ERROR_INVALID_LEVEL 
    154       ERROR_LABEL_TOO_LONG 
 
 Remarks 

 Trailing blanks supplied at volume label definition time are not returned 
 by DosQFSInfo. 

 File system information can be set only if the volume is opened in a mode 
 that allows write-access.