[Rack] [Noisebridge-discuss] minotaur is down

Jonathan Lassoff jof at thejof.com
Mon Jul 8 02:46:42 UTC 2013


Ok, so, I added some monit configuration for the baron daemons, and
now everything will start automatically.
Monit will be a watchdog for the processes, re-starting them if they fail.

Cheers,
jof

On Sun, Jul 7, 2013 at 12:05 PM, Jonathan Lassoff <jof at thejof.com> wrote:
> On Sun, Jul 7, 2013 at 11:59 AM, Henner Zeller <h.zeller at acm.org> wrote:
>> On 6 July 2013 02:26, Jonathan Lassoff <jof at thejof.com> wrote:
>>>
>>> First, gateman needs to come up.
>>>
>>> I'm stuck interacting with the parallel port as a parallel port :(
>>>
>>> open("/dev/usb/lp0", O_RDWR)            = 3
>>> ioctl(3, PPCLAIM, 0x7fff85442ba8)       = -1 ENOTTY (Inappropriate
>>> ioctl for device)
>>
>>
>> It is one of these USB -> parallel port adaptors, so might not be 100%
>> compatible with a 'standard'  parallel port.
>> However, writing bytes to it should still work (if I understand correctly,
>> there is only one bit used to operate the buzzer ?)
>
> Yup -- those adapters/port emulators aren't good for any bit-banging
> operations that are timing-dependent.
>
> I took the conversation onto the rack@ mailing list.
>
> I ended up figuring out what was happening, the driver presented two
> interfaces, one as the raw port and the other as a line printer. I was
> using the line printer interface, and not the raw port access.
> We're all good (other than the downstairs buzzer hardware being broken) now.
>
> Cheers,
> jof


More information about the Rack mailing list