Re: [coLinux-users] Is USB supported?

[Robert C. <rw...@al...>]

Hello Sean,

On Monday, May 17, 2004, at 19:00 US/Central, Sean Covel wrote:
> I'd appreciate any information you have.  I'm on Win2k, coLinux=20
> 20040509, and the Gentoo "delux" image.

I can't find my notes anywhere.  Off the top of my head, you need to=20
get the tool called dmdiag.exe.  IIRC, you get this from Microsoft but=20=

google to be sure.  Install it and run it.  Then insert your USB stick=20=

and run it again.

Here's an example when I use my USB stick.  Here's a very abbreviated=20
portions of dmdiag.exe output before:

---------- Drive letter to device name, QueryDosDevice() ----------

            D: \Device\CdRom0
            A: \Device\Floppy0
            C: \Device\HarddiskVolume1

Here's a very abbreviated portions of dmdiag.exe output after:

---------- Drive letter to device name, QueryDosDevice() ----------

            D: \Device\CdRom0
            E: \Device\Harddisk1\DP(1)0-0+3
            A: \Device\Floppy0
            C: \Device\HarddiskVolume1
=00
Notice the new device E:\.  That's my USB stick.  I then add this line=20=

to my defaults.colinux.xml:

=00    <block_device index=3D"2" path=3D"\Device\Harddisk1\DP(1)0-0+3"=20=

enabled=3D"true" />=00

The index number will change depending on how many devices you already=20=

have defined and will be accessible within colinux as /dev/cobd2  (as=20
in _co_linux _b_lock _d_evice 2.  After I start colinux, I can mount=20
the usb stick like so:

# mkdir /mnt/usb
# mount /dev/cobd2 /mnt/usb
UMSDOS 0.86k (compatibility level 0.4, fast msdos)
# dir /mnt/usb/
total 2620
drwxr--r--    3 root     root        16896 Jan  1  1970 .
drwxr-xr-x    5 root     root         4096 May 18 00:32 ..=00
  ...
# umount /mnt/usb

This is a simple way for Windows to communicate with coLinux.  However,=20=

only one system can be accessing the device at a time.  So, you will=20
need to unmount before Windows can see it and all Windows or files that=20=

are accessing the device must be closed on the Windows side before you=20=

can mount it again.

Hope this helps.  The above is tested on a Win2K machine running=20
coLinux 20040509 with the Debian image.  If you get USB to work for=20
you, I'd like to encourage you to write up your experiences and post=20
them on the wiki, especially if you are using a different host OS,=20
snapshot, or image.

Regards,
- Robert