Hello hackers,
Wanting to try out Sam Leffler's wireless layer back-port I tried to replace the Intel miniPCI wireless card in my Thinkpad T41 (2373) with an Atheros based one. I had a Netgear WAG311 handy - these are an Atheros miniPCI wireless NIC on a PCI carrier - so I levered the top off and freed the miniPCI card.
Ten minutes of open-notebook surgery later I started the machine with the replacement card in, only to find it won't boot:
ERROR
1802 Unauthorized network card is plugged in - Power off and remove the miniPCI card.
It seems that the IBM BIOS refuses to boot if the miniPCI card installed is on IBM's approved list. This thread:
http://www.ussg.iu.edu/hypermail/linux/kernel/0406.1/1048.html
describes a workaround that requires a byte to be set in the cmos, including a snippet (below) to do the job on linux. This opens and writes to /dev/nvram to set the byte.
Is there an equivalent on FreeBSD? Would I find the CMOS somewhere in /dev/mem?
Anyone else has similar problems? BMS@ reported ditching the Centrino card in his T40 but didn't mention if he replaced it with something else.
thanks
Phillip Crumpler
============================================================
#include <stdio.h> #include <sys/types.h> #include <unistd.h> #include <sys/stat.h> #include <fcntl.h>
int main(void)
{
int fd;
unsigned char data;printf("Disabling WiFi whitelist check.\n");
fd = open("/dev/nvram", O_RDWR);
lseek(fd, 0x5c, SEEK_SET);
read(fd, &data, 1);
printf("CMOS address 0x5c: %02x->", data);
data |= 0x80;
printf("%02x\n", data);
lseek(fd, 0x5c, SEEK_SET);
write(fd, &data, 1);
close(fd);
printf("Done.\n");
}
_______________________________________________
[EMAIL PROTECTED] mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
To unsubscribe, send any mail to "[EMAIL PROTECTED]"
