The issue is that, when I first issued that command (at+...?) using
the mouse's middle button, not all characters were copiled to the serial
port but rather forgotten some characters, only displaying "at+".
when I typed the entire AT command, it worked fine, but when the input
is too fast it seems to loose the characters.
Changing the baud rate lower didn't help.
This one's easy. You have one of the buggy uart's which failed to
deal with the new IRQ autodetection (which changed as part of code
simplification and an attempt to deal with other buggy uarts....)
Check with setserial; you probably have an rc.serial file which is
trying to do IRQ autodetection, and the autodetection is failing,
leaving your IRQ for the port set to zero. Hmm... perhaps I should
patch the serial driver to set the irq back to its original value if the
autodetect fails, since that's more likely to work.
The right answer is to hard code the IRQ in your rc.serial script, and
simply declare the irq to be a specific value. Unfortunately, IRQ
detection on the ISA bus is devilishly hard to do right, and it can be
failing for any number of reasons. It doesn't help that 100 different
manufacturers have tried to do clones of the National Semiconductor
UART, but many of them don't do competent jobs. So writing generic code
which works for all of them is not particalarly easy.
- Ted
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