LinuxBios and Openbios's dev/bios capacity

[Mathieu Deschamps]

 I've found in OpenBios dev/bios a good reason to hope i could spare the
cost of a "physical" flashing device , and a ease using. That is to say
getting LinuxBios building the  .bin and flash the onboard BIOS via the
dev/bios mechanism.
 
 I have a via/epia and a SST39 series 20A (256Ko) bios chip on
I'd thought I could read/write this bios with cat my.bin >/dev/bios
but by insmoding bios.o. But i got a kmess coming from lines 123-126 
printk code of bios.c 
      "BIOS : No flash devices found" 
This resulting in a console message "Device busy" (that is, though, a
bit paradoxal notfound != busy isn't it ? :) ) 

 I can't catch what have missed me... Is dev/bios couldn't be used in
my aim ?
 
 Gratefull if experienced people could help me.
 Cordialy.
 
Mathieu