spi_nor_spimem_read_data(9)
β¨ spi_nor_spimem_read_data(9) β¨
okay so bestie π welcome to the Kernel API Manual page for spi_nor_spimem_read_data(9) β itβs all about reading data from the flashβs memory region via spi-mem, and honestly? iconic. no cap.
πΈ NAME πΈ
spi_nor_spimem_read_data β read data from flash's memory region via spi-mem
π SYNOPSIS π
ssize_t spi_nor_spimem_read_data (struct spi_nor *nor , loff_t from ,
size_t len , u8 *buf );
π ARGUMENTS π
norβ pointer tostruct spi_nor. Thatβs the NOR flash struct, bestie.fromβ offset to read from.lenβ number of bytes to read.bufβ pointer to dst buffer. Yes, destination buffer, mwah.
π₯ RETURN π₯
number of bytes read successfully, -errno otherwise. So if it slays, you get the byte count; if not, you get -errno. Thatβs the whole vibe.
π SEE ALSO π
Kernel file: ./drivers/mtd/spi-nor/core.c
okay bestie, hereβs the whole squad of related pages/functions β all names preserved exactly, because we do not do omissions here:
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_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_quad_enable(9)spi_nor_set_4byte_addr_mode(9)spi_nor_soft_reset(9)
π byeee bestie β this pageβs source/version is ./drivers/mtd/spi-nor, itβs dated October 2026, and the whole manual-page title is spi_nor_spimem_read_data(9). πβ¨
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms