Serial port seemingly not working
Dear Debfriends :)
I am attaching my GPS to a serial port under a Debian sid system with a
custom built 2.6.11.4 kernel and it does not seem to work. HArdware is
an IBM Thinkpad T40 (serial port on the port replicator).
Same hardware booted with XP works :(
Not sure I am doing the proper things to have the bloody serial working.
These are the options I believe are of relevance in my kernel config:
bob@t40:/usr/src/linux-2.6.11.4$ grep SERIAL .config |grep -v ^#
CONFIG_SERIAL_8250=m
CONFIG_SERIAL_8250_CS=m
CONFIG_SERIAL_8250_ACPI=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_CORE=m
CONFIG_USB_SERIAL=m
CONFIG_USB_SERIAL_VISOR=m
in dmesg I see
bob@t40:/usr/src/linux-2.6.11.4$ dmesg |grep tty
ttyS0: LSR safety check engaged!
ttyS0: LSR safety check engaged!
bob@t40:~$ lsmod | grep -v ^ip|grep -v ^snd |sort
8250 24292 1 8250_pci
8250_pci 18560 0
aes_i586 39232 0
af_key 32784 0
agpgart 35048 2 drm,intel_agp
blowfish 8256 0
cdrom 41376 1 ide_cd
drm 67412 2 radeon
e1000 88756 0
ehci_hcd 32904 0
evdev 9408 0
fan 4548 0
fat 41372 1 vfat
hw_random 5524 0
ibm_acpi 23264 0
ide_cd 42052 0
intel_agp 23196 1
Module Size Used by
ntfs 112304 1
pcmcia 25672 4
pcmcia_core 50084 3 pcmcia,yenta_socket,rsrc_nonstatic
radeon 78528 1
rsrc_nonstatic 9344 1 yenta_socket
serial_core 23296 1 8250
serpent 14336 0
sha256 9664 0
thermal 13448 0
twofish 38720 0
uhci_hcd 33168 0
usbcore 125368 4 ehci_hcd,usbhid,uhci_hcd
usbhid 27392 0
vfat 14080 1
yenta_socket 23304 2
How do I understand if my serial is working under linux, if ttyS0 is
this serial etc etc
Thank you,
Bob
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