1. 根目录:
2. include
3. uapi
4. linux
5. if_cablemodem.h

#ifndef _LINUX_CABLEMODEM_H_
#define _LINUX_CABLEMODEM_H_
/*
 *		Author: Franco Venturi <fventuri@mediaone.net>
 *		Copyright 1998 Franco Venturi
 *
 *		This program is free software; you can redistribute it
 *		and/or  modify it under  the terms of  the GNU General
 *		Public  License as  published  by  the  Free  Software
 *		Foundation;  either  version 2 of the License, or  (at
 *		your option) any later version.
 */

/* some useful defines for sb1000.c e cmconfig.c - fv */
#define SIOCGCMSTATS		(SIOCDEVPRIVATE+0)	/* get cable modem stats */
#define SIOCGCMFIRMWARE		(SIOCDEVPRIVATE+1)	/* get cm firmware version */
#define SIOCGCMFREQUENCY	(SIOCDEVPRIVATE+2)	/* get cable modem frequency */
#define SIOCSCMFREQUENCY	(SIOCDEVPRIVATE+3)	/* set cable modem frequency */
#define SIOCGCMPIDS			(SIOCDEVPRIVATE+4)	/* get cable modem PIDs */
#define SIOCSCMPIDS			(SIOCDEVPRIVATE+5)	/* set cable modem PIDs */

#endif