/diy/ - Do It Yourself

Anonymous Sat Nov 14 21:13:45 2020 No.1951496 [View]
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>>1951492
Ironically, I recently discovered the reason DOS serial port calls (freedos or msdos, doesn't matter) didn't fucking work no matter what computer or dos version I tried was DTR/DSR.
DOS serial functions do call bios behind the scenes, and bios expects rts/cts + dtr/dsr,
Ridiculous, but that's how it is.
Incidentally, Linux's completely fucked when it comes to DTR/DSR. You're literally better off bitbanging than trying to use Linux serial support.

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/diy/ - Do It Yourself

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