b43-tools

[meknb]

I've built b43-tools and run it every thing runs fine until the last step updating the ssb_sprom.
sudo cp new_ssb_sprom_copy $SSB_SPROM i always get file exists can't overwrite,i've tried cp -f.
I'm not sure if it's because the $SSB_SPROM is pointing to /sys/devices/pci etc, is this the reason i can't write to it ?
I'm running latest tc from a persistence usb made with tc-install.
Sorry should have put this in coreplus.