Hi,
I'm trying to understand how a harddisk access in haiku works,
and which layers are responsible for what task.
Perhaps someone here (or even Axel or Ingo) knows how it works,
and can help me, and complete the picture.
user-space write(int fd) / read(int fd)
VVVVVV
syscall (?)
VVVVVV
some magic here
VVVVVV
devfs_write() / devfs_read()
VVVVVV
IORequest (wrapper class for parameter?)
VVVVVV
IOSchedulder::Process() (does pass through?)
VVVVVV
pnp_devfs_driver_info->write() / pnp_devfs_driver_info->write()
VVVVVV
some /dev/disk/...../raw device (?)
missing connections:
block cache
file cache
pnp device nodes
SCSI bus manager
IDE bus manager
user space readv() / writev()
more?
regards
Marcus
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