heci_write_hbuf(9)

💖 NAME 💖

okay so bestie, we're in the Kernel API Manual (section 9), and the main character today is heci_write_hbuf — literally the write to hardware buffer function 💅✨. That's the whole vibe: it writes to the hardware buffer. Periodt.

🌸 SYNOPSIS 🌸

int heci_write_hbuf (struct issei_device *idev , const void *data , size_t data_len );

🫶 ARGUMENTS 🫶

• idev — the device structure, lowkey the device context you're handing over.
• data — the data to write, aka the payload vibes.
• data_len — the data size, aka the size of the data.

✨ RETURN ✨

• 0 — success, slay 🎀
• <0 — error, not slay 😭

🦋 SEE ALSO 🦋

Kernel file ./drivers/misc/issei/hw_heci.c — start here, bestie. Then go vibe with all these icons:

• heci_reg_read(9)
• heci_reg_write(9)
• heci_fwcbrw_read(9)
• heci_hcbww_write(9)
• heci_irq_src(9)
• heci_hcsr_read(9)
• heci_hcsr_write(9)
• heci_hcsr_set(9)
• heci_hcsr_set_hig(9)
• heci_fwcsr_read(9)
• heci_count_full_read_slots(9)
• heci_irq_disable(9)
• heci_irq_clear(9)
• issei_heci_irq_clear(9)
• issei_heci_irq_enable(9)
• issei_heci_irq_disable(9)
• issei_heci_hw_reset_release(9)
• heci_hw_is_ready(9)
• heci_hw_is_resetting(9)
• issei_heci_host_set_ready(9)
• issei_heci_hw_reset(9)
• issei_heci_irq_write_generate(9)
• issei_heci_hw_config(9)
• heci_read_hbuf(9)
• issei_heci_setup_message_send(9)
• issei_heci_setup_message_recv(9)
• issei_heci_dev_init(9)

signed off from ./drivers/misc/issei, dated October 2026 — heci_write_hbuf(9) out 💅🎀✨