Re: [PATCH 00/10] Support for dumb picture keychain

[Alexandre Julliard]

Guy Albertelli  writes:
> - The initial problem was that the CreateFile above would not
>
> successfully translate the volume id to the associated Unix file. #3/10
> fixed that.

That should go in mountmgr, it already creates the volume symlinks and
manages the devices. What is needed is a way to associate a symlink with
a real Unix file so that you can do reads/writes on it, not just ioctls.
> - The FILE_NO_INTERMEDIATE_BUFFER flag seemed to require the O_DIRECT
>
> flag during the Unix open. This was proven by having standard Linux code
> access the device. #1/10 and #9/10 fixed this.

I don't see why you'd need O_DIRECT.
> - Linux requires the I/O buffer for special files (/dev/..) to be
>
> aligned on 512 byte boundary to get the correct data. #4/10 corrects
> that problem for both reading and writing.

That's really ugly.