fas216_pio(9)

🎀 fas216_pio — the "kernel API manual" era 💅

ok so bestie, welcome to fas216_pio(9), a page straight out of the Kernel API Manual and honestly it's giving "short but iconic." let's get into it ✨

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🌸 NAME 🌸

fas216_pio — transfer data off of/on to the card using programmed IO 🫶

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⭐ SYNOPSIS ⭐

void fas216_pio (FAS216_Info *info , fasdmadir_t direction );

like, that's the whole signature, no cap. she's small but she's doing her job 💖

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🦋 ARGUMENTS 🦋

• info — the interface you're transferring data to/from, iykyk 🌈
• direction — which way the data's going: DMA_OUT / DMA_IN 👑 (pick your fighter fr fr)

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💜 DESCRIPTION 💜

so what she does is transfer data off of/on to the card using programmed IO. that's the vibe. that's the whole thing. main character energy, honestly 🧚

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💀 NOTES 💀

this is incredibly slow. 😭

not me exaggerating — that's literally what the manpage says. lowkey a warning, highkey the truth. plan accordingly bestie 🍓

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🔥 SEE ALSO 🔥

kernel file ./drivers/scsi/arm/fas216.c, plus the whole entire friend group 💅:

• fas216_get_last_msg(9)
• fas216_syncperiod(9)
• fas216_set_sync(9)
• fas216_handlesync(9)
• fas216_updateptrs(9)
• fas216_cleanuptransfer(9)
• fas216_transfer(9)
• fas216_stoptransfer(9)
• fas216_reselected_intr(9)
• fas216_message(9)
• fas216_send_command(9)
• fas216_send_messageout(9)
• fas216_busservice_intr(9)
• fas216_funcdone_intr(9)
• fas216_intr(9)
• fas216_kick(9)
• fas216_rq_sns_done(9)
• fas216_std_done(9)
• fas216_done(9)
• fas216_queue_command_internal(9)
• fas216_internal_done(9)
• fas216_eh_abort(9)
• fas216_eh_device_reset(9)
• fas216_eh_bus_reset(9)
• fas216_init_chip(9)
• fas216_eh_host_reset(9)
• fas216_reset_state(9)
• fas216_init(9)
• fas216_add(9)
• fas216_release(9)

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and that's the whole page, bestie!! 🎀✨

cute little sign-off: this one lives in ./drivers/scsi/arm, dated October 2026, and it's filed under fas216_pio(9) — slay 🌸🫶