#ifndef _LINUX_GSMMUX_H
  #define _LINUX_GSMMUX_H
  
  struct gsm_config
  {
  	unsigned int adaption;
  	unsigned int encapsulation;
  	unsigned int initiator;
  	unsigned int t1;
  	unsigned int t2;
  	unsigned int t3;
  	unsigned int n2;
  	unsigned int mru;
  	unsigned int mtu;
  	unsigned int k;
  	unsigned int i;
  	unsigned int unused[8];		/* Padding for expansion without
  					   breaking stuff */
  };
  
  #define GSMIOC_GETCONF		_IOR('G', 0, struct gsm_config)
  #define GSMIOC_SETCONF		_IOW('G', 1, struct gsm_config)

  struct gsm_netconfig {
  	unsigned int adaption;  /* Adaption to use in network mode */
  	unsigned short protocol;/* Protocol to use - only ETH_P_IP supported */
  	unsigned short unused2;
  	char if_name[IFNAMSIZ];	/* interface name format string */
  	__u8 unused[28];        /* For future use */
  };
  
  #define GSMIOC_ENABLE_NET      _IOW('G', 2, struct gsm_netconfig)
  #define GSMIOC_DISABLE_NET     _IO('G', 3)

  
  #endif