Messages in this thread | | | Date | Tue, 1 Jun 1999 16:23:14 +0200 | From | Pavel Machek <> | Subject | irda: is it tty or netdevice or both? [was Re: TTY_FLIPBUF_SIZE too low causing dataloss on too fast serial lines?] |
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Hi!
> So IrDA SIR mode uses async mode which and has to be framed and stuffed in > software. MIR and FIR mode are however handled in hardware, and those chips > has very frame oriented interfaces. So we don't really need any
From what I seen (pc87108, tir2000), even at MIR/FIR speeds hardware looks like serial with length-of-packet added. I actually implemented tir2000 FIR driver as tty - it adds frame begining/end when it absolutely musts. Being tty has certain advantages in my eyes: most interesting is "i'm able to test it with simple commands like cat and echo". Also, being tty I could try to run something else than irda over that line (for example scarab).
> HDLC TTY handling. In my view IrDA device drivers are network device > drivers, irtty is actually a line discipline in bottom and a network device
Is it possible to write tty-over-netdevice driver? I would quite like to be able to transfer data over point-to-point ethernet using zmodem protocol ;-). Pavel -- The best software in life is free (not shareware)! Pavel GCM d? s-: !g p?:+ au- a--@ w+ v- C++@ UL+++ L++ N++ E++ W--- M- Y- R+
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