cypress_nor_set_octal_dtr(9)

💅 cypress_nor_set_octal_dtr(9) — a Kernel API Manual moment 💅

okay bestie, welcome to the cypress_nor_set_octal_dtr(9) page from the Kernel API Manual. this one is short, iconic, and very “set the flash vibe” 🦋 no cap.

🌸 NAME 🌸

cypress_nor_set_octal_dtr — Enable or disable octal DTR on Cypress flashes. periodt 💖

✨ SYNOPSIS ✨

int cypress_nor_set_octal_dtr (struct spi_nor *nor , bool enable );

🎀 ARGUMENTS 🎀

• nor — pointer to a struct spi_nor 🫶
• enable — whether to enable or disable Octal DTR. yes bestie, it’s literally the on/off switch for the Octal DTR situation 💅

🔥 DESCRIPTION 🔥

This also sets the memory access latency cycles to 24 to allow the flash to run at up to 200MHz. highkey important detail, do not lose it 💜

🌈 RETURN 🌈

0 on success, -errno otherwise. slay when it’s zero, cry in errno when it’s not 😭

lowkey: that’s the whole return situation, no surprise plot twist.

👑 SEE ALSO 👑

• Kernel file ./drivers/mtd/spi-nor/spansion.c struct spansion_nor_params(9)
• spansion_nor_clear_sr(9)
• cypress_nor_sr_ready_and_clear(9)
• cypress_nor_quad_enable_volatile(9)
• cypress_nor_determine_addr_mode_by_sr1(9)
• cypress_nor_set_addr_mode_nbytes(9)
• cypress_nor_get_page_size(9)
• spansion_nor_sr_ready_and_clear(9)

that’s the whole page, bestie 🧚 source/version: ./drivers/mtd/spi-nor · date: October 2026 · page: cypress_nor_set_octal_dtr(9) 💖✨