spi_nor_read_sr2(9)

💖 NAME 💖

okay so this is spi_nor_read_sr2(9) from the Kernel API Manual, and it's giving “read one specific register, very demure, very mindful” 💅. What it does: read the Status Register 2 using the SPINOR_OP_RDSR2 (3fh) command. No cap, that's the whole vibe.

✨ SYNOPSIS ✨

int spi_nor_read_sr2 (struct spi_nor *nor , u8 *sr2 );

🎀 ARGUMENTS 🎀

• nor — pointer to struct spi_nor. Bestie, that's the SPI NOR struct you're working with.
• sr2 — pointer to a DMA-able buffer where the value of the Status Register 2 will be written. Yes, DMA-able — that's the requirement, okay? 🫶

💫 RETURN 💫

0 on success, -errno otherwise. That's it. Slay.

🌈 SEE ALSO 🌈

Kernel file: ./drivers/mtd/spi-nor/core.c — and the whole friend group is: 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_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_quad_enable(9), spi_nor_set_4byte_addr_mode(9), spi_nor_soft_reset(9).

mwah 💋 — source/version ./drivers/mtd/spi-nor, date October 2026, page spi_nor_read_sr2(9). We're out. 💅✨