On Tue, Oct 18, 2016 at 12:48 PM, rishat <address@hidden> wrote:
Hi Andrei
May I ask another question? How I can debug this behaviour? I believe
that
BIOS initializes this adapter. Need to say that "PnP OS" was setted to
"Yes"
value. I've changed it to "No" and ... same silence in the minicom.
Well, assuming BIOS did initialize this card it may use different port
address. The one you see in setserial output is assigned by Linux
driver. I do not know how flexible it is, but I presume they may
change.
Try lspci command in GRUB. Does it show your card at all? It also
displays some details of current card setup.
You may want to use "set pager=1" otherwise output will scroll too
fast.
If you see your card could you send screenshot of information GRUB
shows?
Then I
pulled out this adapter and inserted this pci serial adapter to the
other PC
computer. It has already integrated COM port, this one is working
fine, I
have tried to do serial connection via pci adapter, but again I've got
nothing. I just want to figure out is this something I can do with
motherboard or my pci adapter is not compatible. If I need to change
this
card do you have list of pci, pci-e card that successfully can by
used? Is
it possible I've faced to situation when two motherboards can't
initialize
this hardware?
Thank you in advance.
--
Best regards
Rishat
On 2016-10-18 06:47, Andrei Borzenkov wrote:
17.10.2016 22:22, Songatov Rishat пишет:
Hi thank you for helping me!
Unfortunately I haven't got serial access to the grub after adding
this
piece of configuration:
insmod pci
insmod serial
insmod terminal
insmod terminfo
###serial --speed=115200 --port=a880 --word=8 --parity=no --stop=1
serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1
terminal_input serial
terminal_output serial
May be I need some sleep time after inserting pci.mod. How I can do
this?
You can pause with "sleep NN" but as I already wrote this is not
likely
to work anyway - either GRUB needs code to initialize your PCI card
or
BIOS should do it. Try BIOS settings, in the past it was common to
have
something like "PnP OS" where "no" would cause BIOS to initialize all
available hardware and "yes" would leave it to operating system.
--
Best regards
Rishat
On 17.10.2016 20:34, Andrei Borzenkov wrote:
17.10.2016 19:41, rishat пишет:
On 2016-10-17 19:16, Andrei Borzenkov wrote:
17.10.2016 16:16, rishat пишет:
setserial -g /dev/ttyS[0-4]
/dev/ttyS0, UART: 16550A, Port: 0xa880, IRQ: 21
...
When I tried to manually type a "serial --speed=115200 --unit=0
--word=8
--parity=no --stop=1" in the grub command line it complains that
COM1
port don't exist. I have played with unit and port attributes
but
without any luck.
Does "serial --port=a880 ..." work? If not, what exactly happens?
Note that you may need to load at least PCI bus driver (insmod
pci)
for
this to work.
I've tried to use it that way but it didn't find com port again.
I'll try to do insmod pci and write to you tomorrow.
Yes, please let us know, but on firther consideration it probably
won't
help either. Card likely needs to be initialized first, and this
requires driver that knows how to do it. serial driver in GRUB
presumes
hardware is in working state already. Someone would need to
implement
it.
By the way is it possible to share documentation about some useful
modules in the grub? I havn't found any information using google.
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