Handler does not work with telmexatapi.device

[Tallguy58]

Hi,
Executing CLI MOUNT command states that device is mounted.
Executing CLI DIR CD0: shows CD0: is not mounted error.
This is my CD0: mountlist.

    Handler   = L:ODFileSystem
    Device    = telmexatapi.device
    Unit      = 0
    Stacksize = 8192
    Priority  = 5
    GlobVec   = -1
    DosType   = 0x43443031
    Flags     = 0
    Surfaces  = 1
    BlocksPerTrack = 1
    BlockSize = 2048
    Reserved  = 0
    LowCyl    = 0
    HighCyl   = 0
    Buffers   = 20
    BufMemType = 0
    Mount     = 1
    Activate  = 1

Debugged output using l:ODFileSystem-test

[INFO] ODFileSystem v0.5.0 (18.6.2026) starting...
[INFO] core: libraries open, device= unit=0
[INFO] io: opening  unit 0
[ERROR] io: OpenDevice failed device= unit=0 flags=16255938
[INFO] ODFileSystem v0.5.0 (18.6.2026) starting...
[INFO] core: libraries open, device= unit=0
[INFO] io: opening  unit 0
[ERROR] io: OpenDevice failed device= unit=0 flags=16255938
[INFO] ODFileSystem v0.5.0 (18.6.2026) starting...
[INFO] core: libraries open, device= unit=0
[INFO] io: opening  unit 0
[ERROR] io: OpenDevice failed device= unit=0 flags=16255938
Sashimi installed ([Ctrl]+C or "Break 2" to remove)
Sashimi removed.

[reinauer]

Can you try Filesystem = L:ODFileSystem instead of Handler= ?

[Tallguy58]

Hi again,
I used the following mountlist, as per your recommendation and it didn't make any difference.

	Device = telmexatapi.device
	Filesystem = L:ODFileSystem
	Stacksize = 8192
	Priority = 5
	GlobVec	= -1
	DosType	= 0x43443031
	Unit =  1
	Flags = 0
	Surfaces = 1
	BlocksPerTrack = 1
	BlockSize = 2048
	Reserved = 0
	LowCyl = 0
	HighCyl = 0
	Buffers = 20
	BufMemType = 0
	Mount = 1
	Activate = 1

Thank you...

[reinauer]

Do you still get the same log where the device passed into the driver is empty? It seems we're not getting a valid FSSM packet on load

[INFO] core: libraries open, device= unit=0

Can you try adding

ForceLoad=1

to your mountlist?

How do you load your mountlist? Do you place it in devs:DosDrivers?
Do you have another mountlist in place that loads another filesystem for CD01?

Can you try modifying the CD0 entry on the release adf and change the DEVICE= entry in the tooltype?

[Tallguy58]

Hello,
I load the mountlist in s:startup-sequence using Mount >NIL: DEVS:DOSDrivers/~(#?.info).
I normally have 2 mountlists CD0 and CDDA. The CDDA mountlist is for extracting audio data from CDs as WAV files.

This is my mountlist for CD0:.

/* AllegroCDFS mountlist */

   Device         = telmexatapi.device
   Unit           = 0
   FileSystem     = L:AllegroCDFS
   Flags          = 0             /* unused */
   BlocksPerTrack = 10            /* unused */
   BlockSize      = 2048          /* unused */
   Mask           = 0x7ffffffe
   LowCyl         = 0             /* unused */        
   HighCyl        = 0             /* unused */
   Surfaces       = 1             /* unused */
   Buffers        = 128           
/*                  128 = 128 * 512 bytes */
   BufMemType     = 5
   GlobVec        = -1
   Mount          = 1
   Priority       = 5
   DosType        = 0x41434453  
   StackSize      = 2048
/* Control        = DC */
/*                  DC=DEFCDDA/S -  ISO/CDDA disks start as CDDA */

/* The Device and Unit fields are controlled by ToolTypes in the icon.*/

This is my mountlist for CDDA:.

/* Mountlist entry for CDDA-FileSystem */
        FileSystem              = L:CDDA-FileSystem
        Device                  = telmexatapi.device
        Unit                    = 0
        Flags                   = 0
        BlocksPerTrack  = 1 /* not used */
        BlockSize               = 2352 /* not used */
        Mask            = 0x7ffffffe /* not used */
        MaxTransfer     = 0x1000000 /* not used */
        Reserved                = 0 /* not used */
        Interleave              = 0 /* not used */
        LowCyl                  = 0 /* not used */
        HighCyl                 = 1 /* not used */
        Surfaces                = 1 /* not used */
        Buffers         = 128 /* Number of cache lines */
        BufMemType      = 1 /* MEMF_PUBLIC */
        GlobVec                 = -1 /* DO NOT CHANGE!!! */
        Mount                   = 1 /* Mount immediately */
        Priority                = 5
        DosType                 = 0x43444441 /* not used */
        StackSize               = 4096
        Control                 = "ENDIAN=LITTLE FORMAT=WAVE COMMANDSET=ATAPI"
/* The Control field is for special adjustments */
/* ENDIAN/K                     defines the 'endianess' of the cd-rom drive
                                        possible values are: BIG and LITTLE */
/* FORMAT/K                     defines the format of emulated cdda files
                                        possible values are: RAW, WAVE and AIFF */
/* COMMANDSET/K         defines the command set which is used for read operations
                                        possible values are: ATAPI, TOSHIBA, PHILIPS, SONY and NEC */
/* POLLCDSTATE/S    poll for cd changes instead of installing a change interrupt */

When testing your filesystem driver I moved both of those into SYS:Storage/DOSDrivers and copied your mountlist into DEVS:DOSDrivers.

This is the mountlist I used for the test.

	Device = telmexatapi.device
	Filesystem = L:ODFileSystem
	Stacksize = 8192
	Priority = 5
	GlobVec	= -1
	DosType	= 0x43443031
	Unit =  0
	Flags = 0
	Surfaces = 1
	BlocksPerTrack = 1
	BlockSize = 2048
	Reserved = 0
	LowCyl = 0
	HighCyl = 0
	Buffers = 20
	BufMemType = 0
	Mount = 1
	Activate = 1
	ForceLoad = 1

This the debugged output using Sashimi.
I changed the unit numbers from 0 to 7 and remounted, but the results were similar each time.

[INFO] ODFileSystem v0.5.0 (18.6.2026) starting...
[INFO] core: libraries open, device=telmexatapi.device unit=0
[INFO] io: opening telmexatapi.device unit 0
[INFO] io: device open
[INFO] io: geometry rc=-3 sector=0
[WARN] io: no usable device on unit 0 (geometry rc=-3) - declining mount
[INFO] ODFileSystem v0.5.0 (18.6.2026) starting...
[INFO] core: libraries open, device=telmexatapi.device unit=0
[INFO] io: opening telmexatapi.device unit 0
[INFO] io: device open
[INFO] io: geometry rc=-3 sector=0
[WARN] io: no usable device on unit 0 (geometry rc=-3) - declining mount
Sashimi installed ([Ctrl]+C or "Break 2" to remove)
Sashimi removed.

Thank you,
Alexander.