It looks like you can continue using 1.3.3 with your application if
you do the following:
#define TIOCMGET TIOCGFLAGS
#define TIOCMSET TIOCSFLAGS

Those two ioctls are listed as being unsupported by the com driver.
-Brian

On Jul 12,  3:53pm, Steven Grunza wrote:
} Subject: RE: Huh? TIOCMGET fails in 1.3.3?  How's 1.4?
} On Monday, July 12, 1999 3:26 PM, Michael Maciolek 
} [SMTP:mikem@ne.cohesive.com] wrote:
} [snipped for space]
} >
} > prompt% make tio
} > cc -O   -o tio tio.c
} >
} > prompt% ./tio
} > ioctl TIOCMGET: Inappropriate ioctl for device
} >
} > Thanks for any assistance!
} >
} > Regards,
} >
} > Michael Maciolek
} 
} grunza@hw-ss1%(17) ls -l /dev/ttyb
} crw-rw-rw-  1 uucp  root  12, 1 Jun  4 13:08 /dev/ttyb
} grunza@hw-ss1%(18) ./tio
} mode=0x00000006
} grunza@hw-ss1%(19) uname -a
} NetBSD hw-ss1 1.4 NetBSD 1.4 (HW-SS1) #2: Mon Jun  7 12:28:48 EDT 
} 1999     root@hw-ss1:/usr/src/sys/arch/sparc/compile/HW-SS1 sparc
} grunza@hw-ss1%(20)
} 
} Worked ok for me in 1.4
} 
} =======================================================
} Steven Grunza				Hardware Engineer
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} 
} 
} 
>-- End of excerpt from Steven Grunza