[Rack] minotaur is down

Jonathan Lassoff jof at thejof.com
Sat Jul 6 21:12:29 UTC 2013

On Sat, Jul 6, 2013 at 3:17 AM, Jake <jake at spaz.org> wrote:
> we have been spamming the discuss list with this stuff.  no more.

Oh... yeah, I suppose rack@ is more appropriate.
However, I think we're more on-topic in this thread than most of the
other threads :p

> it may be an issue of the old hardware having a "real" parallel port that we
> never used, because we didn't have a connector for it, and the new hardware
> doesn't have a real parallel port.

Certainly possible.
However, since it's the USB emulator in both cases. I'm unsure exactly
what is breaking.

> make sure you're talking to the right device, which is a USB parallel port
> which is tied to the sprinkler pipe just above the wall-o-tubes.
> i guess you're looking at /dev/usb... so it should be the right device.
> it must be something about the new OS install, different drivers for the usb
> parallel port or something fucked up like that.  good luck.

I think I'm talking to the right device. Both kernels used the uss720
driver, however I was getting at it as /dev/parport0 (hard-coded into
gateman :( ), whereas now there seems to be a device at /dev/usb/lp0.

It's major number 180, minor 0, which the device listing
(http://www.mjmwired.net/kernel/Documentation/devices.txt#2531) shows
as 0 = /dev/usb/lp0 First USB printer.

I wonder if I'm trying to bit-bang to something that is supposed to be
a printer, and that is getting in the way.

I'll keep hacking and experimenting. Any kernel hackers looking for a
short exploration are encouraged to get in touch.


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