Ah, that makes sense.
I'd like to emphasize at this point that I am only porting this
software, the design is not my fault!
The software was originally written to talk to SCSI disks via a
traditional SCSI pass through device. There is a user mode service
which does all of the reads and writes and there is a kernel mode
VFS driver. The two components talk to each other through a device
file created for the purpose (call it the coms device), the driver
by making function calls direct and the user mode service through
the ioctl interface.
The existing software passes the path to the coms device to the
mount system call, *not* the IOMedia's BSD device. Would I be
correct in guessing that the system uses the mount point's device
file to locate the IOMedia object?
On Dec 20, 2005, at 00:59, Dan Markarian wrote:
Hi Jeremy,
It sounds as though the file system does not match against a media
object in I/O Kit. We require the media object in order to
request an ejection and also locate its icon. Does the disk in
question not have a media object created for it? Does the file
system talk directly to USB?
Dan
On 18 Dec 2005, at 5:59 AM, Jeremy Pereira wrote:
I am porting a file system driver for magneto-optical disk drives
from BSD to Mac OS X. Everything works fine at the BSD level.
Disks will mount and you can read and write files to them and
everything else you would normally expect to do.
By creating an appropriate bundle in /System/Library/FileSystems
I have got disks to automatically mount and appear as drives in
the Finder. However, I have two issues:
1. The Finder will not eject disks when you ask it to. When you
press the eject button next to the drive icon, nothing happens
except any open windows displaying the content of the drive
revert back up to the "computer" view.
2. The icon I am getting is the network drive icon. A USB drive
icon would be more appropriate.
The more pressing problem is the eject issue. How does the
Finder notify the OS that a volume should be unmounted and ejected?
