struct board_chan *bc; 
struct board_chan __iomem *bc; 
static void pc_start(struct tty_struct *tty){ /* Begin pc_start */	struct channel *ch;	/* ---------------------------------------------------------		verifyChannel returns the channel from the tty struct		if it is valid.  This serves as a sanity check.	------------------------------------------------------------- */	if ((ch = verifyChannel(tty)) != NULL) { /* Begin if channel valid */		unsigned long flags;		spin_lock_irqsave(&epca_lock, flags);		/* Just in case output was resumed because of a change in Digi-flow */		if (ch->statusflags & TXSTOPPED)  { /* Begin transmit resume requested */			struct board_chan *bc;			globalwinon(ch);			bc = ch->brdchan;			if (ch->statusflags & LOWWAIT)				writeb(1, &bc->ilow);			/* Okay, you can start transmitting again... */			fepcmd(ch, RESUMETX, 0, 0, 0, 0);			ch->statusflags &= ~TXSTOPPED;			memoff(ch);		} /* End transmit resume requested */		spin_unlock_irqrestore(&epca_lock, flags);	} /* End if channel valid */} /* End pc_start */
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/bc9a5154a24d16d41cc79dbf1442de34454bc7db/epca.c/buggy/drivers/char/epca.c