w1_pre_write(9)

✨ NAME ✨

okay so bestie, this is w1_pre_write from the Kernel API Manual — page w1_pre_write(9), if we're being fancy. It's all about pre-write operations. That's the whole name vibe. 🦋

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🌸 SYNOPSIS 🌸

void w1_pre_write (struct w1_master *dev );

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💅 ARGUMENTS 💅

• dev — the master device. That's it, that's the arg. 🫶

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🔥 DESCRIPTION 🔥

This is the pre-write operation, and currently it's only supporting strong pullups. No cap.

So here's the tea: it programs the hardware for a strong pullup — but only if one has been requested and the hardware supports it. If not, it is literally not the moment. 💀

lowkey important: the "hardware supports it" part is not optional, bestie. Conditional behavior stays conditional. ✨

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🎀 SEE ALSO 🎀

Kernel file: ./drivers/w1/w1_io.c — that's the one. 👑

• w1_touch_bit(9)
• w1_write_bit(9)
• w1_post_write(9)
• w1_write_8(9)
• w1_read_bit(9)
• w1_triplet(9)
• w1_read_8(9)
• w1_write_block(9)
• w1_touch_block(9)
• w1_read_block(9)
• w1_reset_bus(9)
• w1_reset_select_slave(9)
• w1_reset_resume_command(9)
• w1_next_pullup(9)

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okay that's the page, bestie. 💖 This one's from the Kernel API Manual, source/version ./drivers/w1, dated October 2026. slay, go read the other w1_* pages. 🌈👑