Alexander E. Patrakov wrote:
1) This differs from what we have discussed on IRC.
On IRC, you said that there is a "$brltty" variable that gets examined
by the brltty process if it is started without command line arguments.
Also, are you sure that only one command line argument is needed? Linux
kernel cannot pass environment variables with space from the command line.
I think perhaps you misunderstood me - or perhaps I misunderstood what
the Braille user was telling me. To my knowledge, there isn't a $brltty
variable by default. I will investigate that now however, just to be
sure. Passing an argument like this at the command prompt has been
tested and works (at least, as much as I can test without a braille
machine):
linux BRLTTY="-d /dev/ttyS0 -b eu"
2) ISOLINUX doesn't print anything to the serial port by default, so
there is no clue thet brltty is available.
Yes, it does, and it always has since I first created the CD, IIRC.
http://wiki.linuxfromscratch.org/livecd/browser/trunk/isolinux/isolinux.cfg
The first line make isolinux output its text to the serial port.
See here for reference:
http://syslinux.zytor.com/faq.php#CMD_SERIAL
ISOLINUX has to be either
rebuilt or reconfigured (too lazy to check the manual).
Doesn't pay to be lazy. ;)
3) The serial port is configured out on ppc (it caused hangs earlier,
did this get fixed?), so brltty is currently useless there.
Haven't noticed this. Will make a note to look at it. We disabled the
serial port due to other troubles, correct? In any case, ppc doesn't use
isolinux, so it wouldn't have serial output until the bootscripts anyway
- unless yaboot can do something similar, I haven't seen anything about
it yet, though.
--
JH
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