[LinuxPPS] pps patch does not see my serial ports

[Folkert van Heusden]

Even more information:

belle:/home/folkert# cat /sys/class/pps/00/path
/dev/lp0

belle:/home/folkert# cat /sys/class/pps/01/path
/dev/ttyS1

After modprobe of ktimer:
belle:/usr/src/linux-2.6-2.6.22# dmesg | tail -n 5
PPS event at 4295217944
PPS event at 4295218194
PPS event at 4295218444
PPS event at 4295218694
PPS event at 4295218944



On Sun, Jan 13, 2008 at 03:30:23PM +0100, Folkert van Heusden wrote:
> I forgot some information:
> 
> belle:/usr/src/linux-2.6-2.6.22/Documentation/pps# ls -lR /sys/class/pps/
> /sys/class/pps/:
> total 0
> drwxr-xr-x 2 root root 0 2008-01-13 15:21 00
> drwxr-xr-x 2 root root 0 2008-01-13 15:23 01
> 
> /sys/class/pps/00:
> total 0
> -r--r--r-- 1 root root 4096 2008-01-13 15:21 assert
> -r--r--r-- 1 root root 4096 2008-01-13 15:21 echo
> -r--r--r-- 1 root root 4096 2008-01-13 15:21 mode
> -r--r--r-- 1 root root 4096 2008-01-13 15:21 name
> -r--r--r-- 1 root root 4096 2008-01-13 15:21 path
> lrwxrwxrwx 1 root root    0 2008-01-13 15:13 subsystem -> ../../../class/pps
> --w------- 1 root root 4096 2008-01-13 15:13 uevent
> 
> /sys/class/pps/01:
> total 0
> -r--r--r-- 1 root root 4096 2008-01-13 15:28 assert
> -r--r--r-- 1 root root 4096 2008-01-13 15:28 clear
> -r--r--r-- 1 root root 4096 2008-01-13 15:28 echo
> -r--r--r-- 1 root root 4096 2008-01-13 15:28 mode
> -r--r--r-- 1 root root 4096 2008-01-13 15:28 name
> -r--r--r-- 1 root root 4096 2008-01-13 15:28 path
> lrwxrwxrwx 1 root root    0 2008-01-13 15:23 subsystem -> ../../../class/pps
> --w------- 1 root root 4096 2008-01-13 15:28 uevent
> 
> 
> it seems 01 appeared AFTER I executed "setserial  /dev/gps0 hardpps"
> 
> I also executed "ppsctl /dev/gps0 enable" but that did not help either
> 
> On Sun, Jan 13, 2008 at 03:27:34PM +0100, Folkert van Heusden wrote:
> > Hi,
> > 
> > Took a while but I succeeded in creating a debian-aware kernel image
> > package with PPS support:
> > 
> > belle:/usr/src/linux-2.6-2.6.22/Documentation/pps# dmesg | grep -i pps
> > Linux version 2.6.22.pps-nodeb (root at belle) (gcc version 4.2.3 20071123 (prerelease) (Debian 4.2.2-4)) #1 SMP Sun Jan 13 14:43:34 CET 2008
> > LinuxPPS API ver. 2 registered
> > parport_pc 00:07: PPS source #0 "/dev/lp0" added
> > parport_serial 0000:05:02.0: PPS support disabled due port "/dev/lp1" is in polling mode
> > 
> > As you can see though it does not detect the serial ports in the system.
> > 
> > belle:/usr/src/linux-2.6-2.6.22/Documentation/pps# grep serial /proc/interrupts
> >  18:        137       6066   IO-APIC-fasteoi   uhci_hcd:usb5, ehci_hcd:usb6, serial
> > 
> > 05:02.0 Communication controller: NetMos Technology PCI 9835 Multi-I/O Controller (rev 01)
> >         Subsystem: LSI Logic / Symbios Logic 1P2S
> >         Flags: medium devsel, IRQ 18
> >         I/O ports at 8400 [size=8]
> >         I/O ports at 8800 [size=8]
> >         I/O ports at 8c00 [size=8]
> >         I/O ports at 9000 [size=8]
> >         I/O ports at 9400 [size=8]
> >         I/O ports at 9800 [size=16]
> > 
> > gps0 is (using udev) the first port on the plugin serial adapter as shown above
> > 
> > belle:/usr/src/linux-2.6-2.6.22/Documentation/pps# ./ppstest /dev/gps0
> > trying PPS source "/dev/gps0"
> > no available PPS source in the system
> > 
> > It does see the parallel port though:
> > belle:/usr/src/linux-2.6-2.6.22/Documentation/pps# ./ppstest
> > found PPS source #0 "parport0" on "/dev/lp0"
> > ok, found 1 source(s), now start fetching data...
> > time_pps_fetch() error -1 (Connection timed out)
> > but my GPS is connected to the serial port.
> > 
> > 
> > belle:/usr/src/linux-2.6-2.6.22/Documentation/pps# dmesg | grep tty
> > 00:06: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
> > 0000:05:02.0: ttyS1 at I/O 0x8400 (irq = 18) is a 16550A
> > 0000:05:02.0: ttyS2 at I/O 0x8800 (irq = 18) is a 16550A
> > 
> > gps0 -> ttyS1
> > 
> > 
> > Folkert van Heusden
> > 
> > -- 
> > To MultiTail einai ena polymorfiko ergaleio gia ta logfiles kai tin
> > eksodo twn entolwn. Prosferei: filtrarisma, xrwmatismo, sygxwneysi,
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> 
> 
> Folkert van Heusden
> 
> -- 
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Folkert van Heusden

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