Hello all
I have a problem with reading or setting the wireless card settings from the
kernel (e.g the channel or name) . I want to use the function dev_ioctl().
(defined in core/dev.c )
For this I write my own function integrated in a kernel module.
The function is now called with the device_name "eth0".
The problem is that always I get "no wireless extension".
But if a packet arrive (e.g. Router Solicitation) I can read the wireless
settings.
Is there anything I forgot ?
Do I need locking functions or is it not possible to use the dev_ioctl
function from another kernel module ?
Or has anybody another idea to read or set the wireless settings (e.g. the
frequency or channel).
*****************************************************************************
void get_wireless_info(char *dev_name)
{
struct iwreq wrq;
/*set the device name*/
strncpy(wrq.ifr_name, dev_name, IFNAMSIZ);
if( dev_ioctl(SIOCGIWNAME, &wrq) < 0)
{
printk(" No wireless extension. \n");
return;
}
else
{
printk("Wireless info: devicename= %s \n",wrq.u.name);
return;
}
}
*****************************************************************************
Thank you for all help in advance
Jörg
--------------------------------------------------------
Joerg Eggink
Network Laboratories Heidelberg NEC Europe Ltd.
Adenauerplatz 6
D-69115 Heidelberg, Germany
email: joerg.eggink@ccrle.nec.de
http://www.ccrle.nec.de
-------------------------------------------------------
--
Kernelnewbies: Help each other learn about the Linux kernel.
Archive: http://mail.nl.linux.org/kernelnewbies/
IRC Channel: irc.openprojects.net / #kernelnewbies
Web Page: http://www.kernelnewbies.org/
