omap_write_page_bch(9)
π omap_write_page_bch(9) β like, the whole kernel API manual, bestie
okay so real talk, this page is from the Kernel API Manual and honestly it's giving "niche but iconic" β we're talking about omap_write_page_bch, a function that writes an entire page with BCH ecc. no cap, it does exactly what it says on the tin π
β¨ NAME β¨
omap_write_page_bch β the BCH ecc based write page function, and yes it handles the entire page bestie, not just a lil slice π
πΈ SYNOPSIS πΈ
int omap_write_page_bch (struct nand_chip *chip , const uint8_t *buf ,
int oob_required , int page );
look at that signature. she's gorgeous. she takes four things and returns an int, periodt π
π¦ ARGUMENTS π¦
chipβ nand chip info structure. like, the whole info situation for the chip. she needs her context, okay? πbufβ data buffer. this is where the actual data lives, the main character of the operation β¨oob_requiredβ must writechip->oob_poito OOB. so if this flag's doing its thing, you gotta pushchip->oob_poiover to the OOB area. that's the rule, fr fr π«Άpageβ page. that's it. that's the argument. it's the page π (iconic minimalism honestly)
π DESCRIPTION π
so this is a custom write page method β and the way that it evolved specifically to support multi sector writing in one shot?? obsessed. one shot, many sectors, no extra trips. that's the vibe ππ₯
tl;dr: it's a bespoke write-page path, built up over time so it can write multiple sectors in a single go. chef's kiss. π§
β SEE ALSO β
the whole friend group, in the kernel file ./drivers/mtd/nand/raw/omap2.c:
omap_prefetch_enable(9)omap_nand_data_in_pref(9)omap_nand_data_out_pref(9)omap_nand_data_in_dma_pref(9)omap_nand_data_out_dma_pref(9)gen_true_ecc(9)omap_compare_ecc(9)omap_correct_data(9)omap_calculate_ecc(9)omap_enable_hwecc(9)omap_enable_hwecc_bch(9)_omap_calculate_ecc_bch(9)omap_calculate_ecc_bch_sw(9)omap_calculate_ecc_bch_multi(9)erased_sector_bitflips(9)omap_elm_correct_data(9)omap_write_subpage_bch(9)omap_read_page_bch(9)is_elm_present(9)
like, go read those too. the lore is deep π¦
π btw bestie β this whole page lives under./drivers/mtd/nand/raw, dated October 2026, and the page's own name isomap_write_page_bch(9). slay. that's the sign-off. mwah π β¨
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