hw_write(9)

💖 hw_write(9) 💖

okay bestie, welcome to the Kernel API Manual page for hw_write — the function that is literally just out here writing to a hw register 🎀. No cap, it's giving "small but iconic," and we're obsessed. Here's the whole vibe check, with every fact kept exactly where it belongs ✨.

🎀 NAME 🎀

hw_write — writes to a hw register 💅

🌸 SYNOPSIS 🌸

void hw_write (struct ci_hdrc *ci , enum ci_hw_regs reg , u32 mask , u32
       data );

🦋 ARGUMENTS 🦋

• ci — the controller 👑
• reg — register index 🔢
• mask — bitfield mask 🎭
• data — new value ✨

🌈 SEE ALSO 🌈

Kernel file ./drivers/usb/chipidea/ci.h — plus the whole lineup, iykyk:

• struct ci_hw_ep(9)
• struct ci_role_driver(9)
• struct hw_bank(9)
• struct ci_hdrc(9)
• hw_read_id_reg(9)
• hw_write_id_reg(9)
• hw_read(9)
• hw_test_and_clear(9)
• hw_test_and_write(9)
• ci_otg_is_fsm_mode(9)

mwah 💋 — signed off from source/version ./drivers/usb/chipidea + hw_write(9), dated October 2026, with main-character energy only 🫶