by Hans Schou
I have a ASUS L8400 laptop with Mandrake 8.1 installed. Mandrake was misconfigured by default so I had to change device in /etc/sysconfig/irda. Mandrake 8.1 uses devfs and /dev/ttyS1 is equal to /dev/tts/1.
IRDA=yes DEVICE=/dev/tts/1 DISCOVERY=yes
If you have devfs then try:
# /etc/init.d/irda restart # insmod ircomm # insmod ircomm-tty # ls -l /dev/ircomm? crw-r--r-- 1 root root 161, 0 Jan 2 16:42 /dev/ircomm0 crw------- 1 root root 161, 1 Jan 1 1970 /dev/ircomm1 crw------- 1 root root 161, 2 Jan 1 1970 /dev/ircomm2 crw------- 1 root root 161, 3 Jan 1 1970 /dev/ircomm3 crw------- 1 root root 161, 4 Jan 1 1970 /dev/ircomm4 crw------- 1 root root 161, 5 Jan 1 1970 /dev/ircomm5 crw------- 1 root root 161, 6 Jan 1 1970 /dev/ircomm6 crw------- 1 root root 161, 7 Jan 1 1970 /dev/ircomm7 crw------- 1 root root 161, 8 Jan 1 1970 /dev/ircomm8 crw------- 1 root root 161, 9 Jan 1 1970 /dev/ircomm9
If you do not have devfs then you have to make a node yourself:
mknod /dev/ircomm0 c 161 0
# lsmod | grep ir ircomm-tty 20528 0 (autoclean) ircomm 8064 0 [ircomm-tty] irtty 6000 2 (autoclean) irda 93568 1 (autoclean) [ircomm-tty ircomm irtty]
Use findchip for the first debugging:
# findchip
NSC,PC87338,11.2,0x398,0x2f8,0x2f8,3,3,1,0,1
# findchip -v
Found NSC PC87338 Controller at 0x398, DevID=0x0b, Rev. 2
SIR Base 0x2f8, FIR Base 0x2f8
IRQ = 3, DMA = 3
Enabled: yes, Suspended: no
UART compatible: yes
Half duplex delay = 0 us
After starting /etc/init.d/irda try irdadump: (my hostname is "figus")
# irdadump irda0 15:15:38.657183 xid:cmd fa4d613b > ffffffff S=6 s=0 (14) 15:15:38.747181 xid:cmd fa4d613b > ffffffff S=6 s=1 (14) 15:15:38.837179 xid:cmd fa4d613b > ffffffff S=6 s=2 (14) 15:15:38.927180 xid:cmd fa4d613b > ffffffff S=6 s=3 (14) 15:15:39.017179 xid:cmd fa4d613b > ffffffff S=6 s=4 (14) 15:15:39.107180 xid:cmd fa4d613b > ffffffff S=6 s=5 (14) 15:15:39.197181 xid:cmd fa4d613b > ffffffff S=6 s=* figus hint=0400 [ Computer ] (21)
After turning on the Nokia 6210 I got:
# irdadump irda0 15:19:44.657188 xid:cmd fa4d613b > ffffffff S=6 s=0 (14) 15:19:44.747180 xid:cmd fa4d613b > ffffffff S=6 s=1 (14) 15:19:44.837179 xid:cmd fa4d613b > ffffffff S=6 s=2 (14) 15:19:44.927179 xid:cmd fa4d613b > ffffffff S=6 s=3 (14) 15:19:45.017182 xid:cmd fa4d613b > ffffffff S=6 s=4 (14) 15:19:45.017178 xid:rsp fa4d613b < 6b620000 S=6 s=3 Nokia 6210 hint=b125 [ PnP Modem Fax Telephony IrCOMM IrOBEX ] (27) 15:19:45.107179 xid:cmd fa4d613b > ffffffff S=6 s=5 (14) 15:19:45.197179 xid:cmd fa4d613b > ffffffff S=6 s=* figus hint=0400 [ Computer ] (21)
Just for fun I tried to load IrDALAN to see if there was any difference:
# insmod irlan ; irdadump irda0 Using /lib/modules/2.4.8-26mdk/kernel/net/irda/irlan/irlan.o.gz 15:21:29.657195 xid:cmd fa4d613b > ffffffff S=6 s=0 (14) 15:21:29.747181 xid:cmd fa4d613b > ffffffff S=6 s=1 (14) 15:21:29.837180 xid:cmd fa4d613b > ffffffff S=6 s=2 (14) 15:21:29.927180 xid:cmd fa4d613b > ffffffff S=6 s=3 (14) 15:21:30.017181 xid:cmd fa4d613b > ffffffff S=6 s=4 (14) 15:21:30.107182 xid:cmd fa4d613b > ffffffff S=6 s=5 (14) 15:21:30.107179 xid:rsp fa4d613b < 6b620000 S=6 s=4 Nokia 6210 hint=b125 [ PnP Modem Fax Telephony IrCOMM IrOBEX ] (27) 15:21:30.197182 xid:cmd fa4d613b > ffffffff S=6 s=* figus hint=4400 [ Computer LAN Access ] (21)
# cat /proc/net/irda/discovery IrLMP: Discovery log: nickname: Nokia 6210, hint: 0xb125, saddr: 0x911d416b, daddr: 0x02170000
Resource: http://www.retepnet.it/alfmar/pxnsoa.html#irda .