Novell LINUX ENTERPRISE DESKTOP 10 SP2 - DEPLOYMENT GUIDE 08-05-2008 Deployment Manual page 602

manually doing the following: Click Add > Directly Connected Printers. Select IrDA
Printer and click Next to configure the printer device. Usually, irlpt0 is the right
connection. Click Finish to apply your settings. Details about operating printers in
Linux are available in
Communication with other hosts and with mobile phones or other similar devices is
conducted through the device file /dev/ircomm0. The Siemens S25 and Nokia 6210
mobile phones, for example, can dial and connect to the Internet with the wvdial appli-
cation using the infrared interface. Synchronizing data with a Palm Pilot is also possible,
provided the device setting of the corresponding application has been set to /dev/
ircomm0.
If you want, you can address only devices that support the printer or IrCOMM protocols.
Devices that support the IROBEX protocol, such as the 3Com Palm Pilot, can be ac-
cessed with special applications, like irobexpalm and irobexreceive. Refer to the IR-
HOWTO (http://tldp.org/HOWTO/Infrared-HOWTO/) for information.
The protocols supported by the device are listed in brackets after the name of the device
in the output of irdadump. IrLAN protocol support is still a "work in progress."
29.3.4 Troubleshooting
If devices connected to the infrared port do not respond, use the command irdadump
(as root) to check if the other device is recognized by the computer. Something similar
to Example 29.1, "Output of irdadump"
BJC-80 printer is in visible range of the computer:
Example 29.1 Output of irdadump
21:41:38.435239 xid:cmd 5b62bed5 > ffffffff S=6 s=0 (14)
21:41:38.525167 xid:cmd 5b62bed5 > ffffffff S=6 s=1 (14)
21:41:38.615159 xid:cmd 5b62bed5 > ffffffff S=6 s=2 (14)
21:41:38.705178 xid:cmd 5b62bed5 > ffffffff S=6 s=3 (14)
21:41:38.795198 xid:cmd 5b62bed5 > ffffffff S=6 s=4 (14)
21:41:38.885163 xid:cmd 5b62bed5 > ffffffff S=6 s=5 (14)
21:41:38.965133 xid:rsp 5b62bed5 < 6cac38dc S=6 s=5 BJC-80
21:41:38.975176 xid:cmd 5b62bed5 > ffffffff S=6 s=* earth
Check the configuration of the interface if there is no output or the other device does
not reply. Verify that the correct interface is used. The infrared interface is sometimes
located at /dev/ttyS2 or at /dev/ttyS3 and an interrupt other than IRQ 3 is
586 Deployment Guide
Chapter 20, Printer Operation
(page 586) appears regularly when a Canon
hint=8804 [Printer IrCOMM ] (23)
hint=0500 [ PnP Computer ] (21)
(page 439).