PPE_BYTE(3)

💖 PPE_BYTE(3) — Utility Functions 💖

ok so bestie, welcome to the gpib corner of the universe, we're doing PPE_byte today and honestly it's giving tiny-function-huge-responsibility 🎀

The manual name is PPE_BYTE (section 3, utility functions bestie) and yes we are absolutely about to make a 'parallel poll enable' command byte together. slay.

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✨ NAME ✨

PPE_byte — generate 'parallel poll enable' command byte 🦋

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🌸 SYNOPSIS 🌸

#include <gpib/ib.h>

uint8_t PPE_byte(unsigned int dio_line, int sense);

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💅 DESCRIPTION 💅

okay so PPE_byte() hands you back a 'parallel poll enable' command byte that matches up with the dio_line and sense arguments you fed it. that's the whole vibe. no cap.

the dio_line is the one telling everyone which dio line the device being configured should use to send back its parallel poll response — and heads up bestie, the valid values are 1 through 8, that's the whole range, don't be out here testing 0 or 9, that's not it. 💀

then the sense argument is the one in charge of the polarity of the response:

• if sense is nonzero, then the specified dio line will be asserted to indicate that the 'individual status bit' (or 'ist') is 1 ⭐
• if sense is zero, then the specified dio line will be asserted when ist is zero 🌈

so basically sense is the little switch deciding whether your line lights up for a 1 or lights up for a 0. opposite energy, same assistant. iconic behaviour tbh 🫶

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🔥 RETURN VALUE 🔥

The appropriate PPE command byte is returned. that's it, that's the return value, it ate and left no crumbs 💅✨

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👑 COPYRIGHT 👑

Copyright © 2003-2006, 2008 Frank Mori Hess

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and that's the whole page bestie 🎀 this was linux-gpib 4.3.7, dated 07/06/2026, dropping from the PPE_BYTE(3) page before you even knew what hit you. periodt. 💜