spi_nor_quad_enable(9)

✨ spi_nor_quad_enable(9) ✨

okay so this is a page from the Kernel API Manual bestie, and it's literally all about one tiny function that turns on Quad I/O when your flash chip needs it 💅 no cap.

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🎀 NAME 🎀

spi_nor_quad_enable — enable Quad I/O if needed.

like… if it's needed. that's the whole vibe check 🦋

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🌸 SYNOPSIS 🌸

int spi_nor_quad_enable (struct spi_nor *nor );

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💖 ARGUMENTS 💖

• nor — pointer to a struct spi_nor 🫶 that's it, that's the whole argument list, she's lowkey minimal.

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⭐ RETURN ⭐

0 on success, -errno otherwise. so if you get 0 you're slaying, and if you get anything else it's giving "something went wrong and the errno will tell you what" 😭

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👑 SEE ALSO 👑

the whole friend group fr fr, all of these live in the Kernel file ./drivers/mtd/spi-nor/core.c:

• spi_nor_get_cmd_ext(9)
• spi_nor_spimem_setup_op(9)
• spi_nor_spimem_bounce(9)
• spi_nor_spimem_exec_op(9)
• spi_nor_spimem_read_data(9)
• spi_nor_read_data(9)
• spi_nor_spimem_write_data(9)
• spi_nor_write_data(9)
• spi_nor_read_any_reg(9)
• spi_nor_write_any_volatile_reg(9)
• spi_nor_write_enable(9)
• spi_nor_write_disable(9)
• spi_nor_read_id(9)
• spi_nor_read_sr(9)
• spi_nor_read_cr(9)
• spi_nor_set_4byte_addr_mode_en4b_ex4b(9)
• spi_nor_set_4byte_addr_mode_wren_en4b_ex4b(9)
• spi_nor_set_4byte_addr_mode_brwr(9)
• spi_nor_sr_ready(9)
• spi_nor_use_parallel_locking(9)
• spi_nor_ready(9)
• spi_nor_wait_till_ready_with_timeout(9)
• spi_nor_wait_till_ready(9)
• spi_nor_global_block_unlock(9)
• spi_nor_write_sr(9)
• spi_nor_write_sr1_and_check(9)
• spi_nor_write_16bit_sr_and_check(9)
• spi_nor_write_16bit_cr_and_check(9)
• spi_nor_write_16bit_sr_cr_and_check(9)
• spi_nor_write_sr_and_check(9)
• spi_nor_write_sr_cr_and_check(9)
• spi_nor_write_sr2(9)
• spi_nor_read_sr2(9)
• spi_nor_erase_die(9)
• spi_nor_div_by_erase_size(9)
• spi_nor_find_best_erase_type(9)
• spi_nor_init_erase_cmd(9)
• spi_nor_destroy_erase_cmd_list(9)
• spi_nor_init_erase_cmd_list(9)
• spi_nor_erase_multi_sectors(9)
• spi_nor_sr1_bit6_quad_enable(9)
• spi_nor_sr2_bit1_quad_enable(9)
• spi_nor_sr2_bit7_quad_enable(9)
• spi_nor_spimem_check_read_pp_op(9)
• spi_nor_spimem_check_readop(9)
• spi_nor_spimem_check_pp(9)
• spi_nor_spimem_adjust_hwcaps(9)
• spi_nor_set_erase_type(9)
• spi_nor_mask_erase_type(9)
• spi_nor_init_uniform_erase_map(9)
• spi_nor_select_uniform_erase(9)
• spi_nor_manufacturer_init_params(9)
• spi_nor_no_sfdp_init_params(9)
• spi_nor_init_flags(9)
• spi_nor_init_fixup_flags(9)
• spi_nor_late_init_params(9)
• spi_nor_sfdp_init_params_deprecated(9)
• spi_nor_init_params_deprecated(9)
• spi_nor_init_default_params(9)
• spi_nor_init_params(9)
• spi_nor_set_4byte_addr_mode(9)
• spi_nor_soft_reset(9)

bestie that's a LOT of cross-references and yes you should absolutely go read them, they're all right there in ./drivers/mtd/spi-nor/core.c 💀💖

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okay that's the whole page!! go forth and enable your Quad I/O, i believe in you 🧚

signed off with love from the ./drivers/mtd/spi-nor girlies, October 2026 edition 🎀✨