h6. [[OS SWI Calls]] h6(. » [[OS_FSControl]] h6((. » OS_FSControl 33 h2. OS_ FSControl 33 h5. (SWI &29) |_<^{width:4em}. Entry | | |<^. R0 |<^. 33 (&21) | |<^. R1 |<^. [[Filing System Numbers|Filing system number]] | |<^. R2 |<^. Pointer to buffer | |<^. R3 |<^. Length of buffer | |_<^{width:4em}. Exit | | |<^. R0|<^. Preserved| |<^. R1|<^. Preserved| |<^. R2|<^. Preserved| |<^. R3|<^. Preserved| h4. Use The purpose of this call is to converts a filing system number to a filing system name. h4. Notes This call converts the filing system number passed in R1 to a filing system name. The name is stored in the buffer pointed to by R2, and is null-terminated. If FileSwitch does not know of the filing system number you pass it, a null string is returned. h4. See also * [[Filing System Numbers]] * [[OS_FSControl]]