From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <5ac6ec8bdab9695b1b378c1444c48e05@juice.thebigchoice.com>
From: matt@proweb.co.uk
Date: Mon, 21 Jun 2004 12:25:46 +0100
To: 9fans@cse.psu.edu
Subject: Re: [9fans] using dvd/rw as WORM drive for venti on USB interface
In-Reply-To: <4e24f2fa04062017494110b620@mail.gmail.com>
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run usb/usbd

you can then see which USB datafiles appear in /dev

ls -d /dev/usb*

then write a program that includes this :

	sprint(datafile1, "/dev/usb%d/%d/ep1data", usbport, usbchannel);
	sprint(datafile2, "/dev/usb%d/%d/ep2data", usbport, usbchannel);

	fdin =3D open(datafile1, OREAD);
	fdout =3D open(datafile2, OWRITE);

	free(datafile1);
	free(datafile2);


as to what you need to read and write - good luck !

when usb/usbd is run it collects the device type ID from the device, the =
ID is an agreeement about the protocol : certain ID's have published prot=
ocols of course some decide to use  ID=3DFF which means "we're using our =
own protocol"

I imagine your mass storage device will use an agreed ID - which is why t=
hey just *work* in Windows=E2=84=A2



m