FreeLists / openbeosnetteam / [openbeosnetteam] Re: Directory Structure...

["Axel Dörfler" <axeld@xxxxxxxxxxxxxxxx>]

> 
> Did Jean say you were looking at how net=5Fserver talks to the network 
> cards=3F
> That's really the first thing we need before we can go anywhere 
> real...

That's the easy part.
Apart from using read/write as you would expect to, it uses some ioctls 
to speak to the driver:

enum {
        ETHER=5FGETADDR =3D B=5FDEVICE=5FOP=5FCODES=5FEND,      /* get ethernet 
address */
        ETHER=5FINIT,                                                           
/* set irq and port */
        ETHER=5FNONBLOCK,                                                       
/* set/unset nonblocking 
mode */
        ETHER=5FADDMULTI,                                                       
/* add multicast addr */
        ETHER=5FREMMULTI,                                                       
/* rem multicast addr */
        ETHER=5FSETPROMISC,                                             /* set 
promiscuous */
        ETHER=5FGETFRAMESIZE                                            /* get 
frame size */
};

ETHER=5FINIT is only of interest for ISA cards.
ETHER=5FGETFRAMESIZE & ETHER=5FNONBLOCK work like this:

case ETHER=5FGETFRAMESIZE:
        D(bug("ioctl: get frame size\n"));
        *(uint32*)buf =3D MAX=5FFRAME=5FSIZE;
        return B=5FNO=5FERROR;

case ETHER=5FNONBLOCK:
        info->blockFlag =3D *(int32 *)buf =3F B=5FTIMEOUT : 0;
        D(bug("ioctl: non blocking =3F %s\n",info->blockFlag =3F "yes" : 
"no"));
        return B=5FNO=5FERROR;

Any more questions=3F

Adios...
   Axel.