Date: Wed, 5 Mar 1997 21:36:40 +0000 () From: Eric Yagerlener <eyager@novagate.com> To: questions@freebsd.org Subject: Serial Printer flow control Message-ID: <Pine.BSF.3.91.970305212212.2880A-100000@localhost>
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I have an Epson LQ-2550 that I have hooked up to my FreeBSD box. For some reason the hardware flow control isn't working to prevent data from being sent to the printer when internal buffer is full. I would have to use software flow control which could hopefully work. I enabled the DC1/DC3 option on the printer itself, but it doesn't seem to work. I'm not sure if DC1 and DC3 are the same as XON/XOFF. In the configuration the baud rate is set to 9600. The fs flag is set to 0x82000c1 the xs flag is set to 0x820. I suspect that I might have to set one of these flags to a different value make FreeBSD use DC1/DC3. Does anyone know what flag I should set? In the meantime I can use a baud rate of 1200 but that isn't fast enough to push the printer to 100% speed. -- Eric
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