/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ /* * usb/ether - usb ethernet adapter. * BUG: This should use /dev/etherfile to * use the kernel ether device code. */#include <u.h>#include <libc.h>#include <fcall.h>#include <thread.h>#include "usb.h"#include "usbfs.h"#include "ether.h" enum{	Arglen = 80,}; static voidusage(void){	fprint(2, "usage: %s [-a addr] [-Dd] [-N nb] [-m mnt] [-s srv] [dev...]\n", argv0);	threadexitsall("usage");} /* * Ether devices may be weird. * Be optimistic and try to use any communication * device or one of the `vendor specific class' devices * that we know are ethernets. */static intmatchether(char *info, void*){	Cinfo *ip;	char buf[50]; 	/*	 * I have an ether reporting comms.0.0	 */	if(strstr(info, "comms") != nil)		return 0;	for(ip = cinfo; ip->vid != 0; ip++){		snprint(buf, sizeof(buf), "vid %#06x did %#06x", ip->vid, ip->did);		if(strstr(info, buf) != nil)			return 0;	}	return -1;} voidthreadmain(int argc, char **argv){	char args[Arglen];	char *as, *ae, *srv, *mnt; 	srv = nil;	mnt = "/net"; 	quotefmtinstall();	ae = args+sizeof(args);	as = seprint(args, ae, "ether");	ARGBEGIN{	case 'a':		as = seprint(as, ae, " -a %s", EARGF(usage()));		break;	case 'D':		usbfsdebug++;		break;	case 'd':		usbdebug++;		as = seprint(as, ae, " -d");		break;	case 'N':		as = seprint(as, ae, " -N %s", EARGF(usage()));		break;	case 'm':		mnt = EARGF(usage());		break;	case 's':		srv = EARGF(usage());		break;	default:		usage();	}ARGEND 	rfork(RFNOTEG);	threadsetgrp(threadid());	fmtinstall('U', Ufmt);	usbfsinit(srv, mnt, &usbdirfs, MAFTER|MCREATE);	startdevs(args, argv, argc, matchether, nil, ethermain);	threadexits(nil);}