Re: [linux-minidisc] implementing unix himd autodetection function

[John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>]

On Sun, Dec 23, 2012 at 03:47:57PM +0100, Thomas Arp wrote:
> now I made a first patch for the unix autodetection function during
> application runtime.
> At current stage it displays debug messages only.

Hey, that's pretty cool. You're being really productive, congrats!

> I think there is a way to get "allDrives" using dbus for detection
> at application start, but i didn't check this yet.

Well, dbus is an interprocess communication system. I am not sure
whether you can actually enumarate devices through dbus. udev does
this on Linux.

> We can fetch the corresponding driver file (/dev/sdX) and the mountpoint.
> I don't know if there is any way to get  the vendor/product ids.
> 
> Maybe it's enough to check if vendor/model strings are "Sony Hi-MD"
> and if connection interface is usb to accept the drive as himd
> device.

An easy way would be to use udev which is unfortunately
Linux-specific. udev emumerates devices and can assign device files
according to specific properties (USB IDs, for example). With udev,
you could have any HiMD/NetMD device known from a
himd.rules/netmd.rules file assign the device file /dev/himdN or
/dev/netmdN (N being an integer number).

We might have to come up with an abstraction layer such that we have
support for at least Linux, *BSD and MacOS X.

Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz@debian.org
`. `'   Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
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