Nokia D211 manual Troubleshooting, Glossary

A sample configuration file "config.example" can be found in the same directory as the client.

Note: The client assumes that GSM has been enabled on the Nokia D211 radio card, i.e. the user has manually enabled it by issuing the command 'nokia_ctl enable_gsm' before running the client. See chapter 5.1 for further information on how to use the nokia_ctl utility.

10. TROUBLESHOOTING

I cannot compile the device driver.

Make sure you have the right kernel sources. The kernel must match the kernel in config.mk and the kernel as 'uname -r' reports.

If the kernels match, make sure you have the correct kernel versions (see below for more information).

I cannot load the module; it says undefined reference to some functions.

If you are sure you compiled the device driver against the correct kernel sources, then you probably have to obtain a known-to-work kernel. The developers of this device driver have used different 2.4 series kernels up to 2.4.16 with the kernel PCMCIA support. Because of the differences that may arise as the kernel is compiled, Nokia cannot guarantee that the device driver will work even with these kernels.

My PC crashes as soon as the device driver module is loaded or radio card is inserted.

There is probably some incompatibility between the device driver binary part and your system. Please try one of the recommended kernels.

I cannot make any connections although the kernel module loads correctly.

Check /proc/net/nokia_cs and kernel log messages for more information about the situation. You can try to get more debugging information by editing src/Makefile and uncommenting OPTIONS = -DD_DEBUG. After that you need to compile and install the device driver again. Check also that the nokia_cs userspace daemon is started after card insertion, e.g. with command ‘ps aux’ which shows all currently started userspace programs.

11. GLOSSARY

Ad hoc	One of the two WLAN operating modes that can be selected
	when using the Nokia D211. With this configuration option,
	users can set up a wireless network where wireless stations
	can send and receive data directly with each other without
	WLAN access points. This type of network is sometimes
	called a peer-to-peer network.
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