Hi all,
With this few words I would like to share the
joyous event of MMIO-based serial port
implementation
has
finally worked for me.
This
is the equivalent of earlycon serial port implementation in
Linux with some extension
(so
now it is even better then Linux one)
Some
work yet is needed to be done to transform the work into the
normal patch, but the good news is
it
is working, and still doesn't require PNPmanager for work,
i.e. it starts very early in kernel and writes kernel log
messages.
I
use ExpressCard 34 extension board Serial RS232 port, on
laptop,
but think it will work fro PC Cards too (former name
PCMCIA).
==Importance:
Touching the hardware==
For
the more developers we need more working PC models ( Real
Hardware)
Almost
all modern PCs are laptops with PCIe bus (the rest
are desktops)
(but
few of them able to boot the ReactOS)
Modern
serial ports are recommended to use /often use MMIO-based
data transfer instead of former I/O ports.
So
now possibility appears to debug these new computers and
force the ReactOS to work on this important part of new PCs.
Thanks
for attention
-Minas
Abrahamyan
PS
Curious note: for catching the debug logs I use the (small
and cheap) soap box-sized microcontroller board with LCD
(ready-unit), and I call it "ReactOS debug logger"
appliance. It doesn't take space and doesn't produce any
noise