void bchannel_activate(struct bchannel *channel, int activate);
void bchannel_transmit(struct bchannel *channel, unsigned char *data, int len);
void bchannel_join(struct bchannel *channel, unsigned short id);
void bchannel_activate(struct bchannel *channel, int activate);
void bchannel_transmit(struct bchannel *channel, unsigned char *data, int len);
void bchannel_join(struct bchannel *channel, unsigned short id);