STRUCT D40_GEN_DMAC(9)

💖 NAME 💖

okay so bestie, welcome to the Kernel API Manual ✨ — this page is all about struct d40_gen_dmac, and it's literally the generic values that represent the u8500/u8540 DMA controller 🫶. no cap, that's the whole vibe of it.

✨ SYNOPSIS ✨

here's the whole struct, copied exactly, go off:

struct d40_gen_dmac {
    u32 *backup;
    u32 backup_size;
    u32 realtime_en;
    u32 realtime_clear;
    u32 high_prio_en;
    u32 high_prio_clear;
    u32 interrupt_en;
    u32 interrupt_clear;
    struct d40_interrupt_lookup     *il;
    u32 il_size;
    struct d40_reg_val              *init_reg;
    u32 init_reg_size;
 };

🎀 Members 🎀

like, every single field, explained, no gatekeeping 💅

• backup — the pointer to the registers address array for backup 👑
• backup_size — the size of the registers address array for backup 🎀
• realtime_en — the realtime enable register ⚡
• realtime_clear — the realtime clear register 🧹
• high_prio_en — the high priority enable register 🔥
• high_prio_clear — the high priority clear register 🌸
• interrupt_en — the interrupt enable register 🔔
• interrupt_clear — the interrupt clear register 🫧
• il — the pointer to struct d40_interrupt_lookup 🦋
• il_size — the size of d40_interrupt_lookup array ✨
• init_reg — the pointer to the struct d40_reg_val 💜
• init_reg_size — the size of d40_reg_val array 🌈

🦋 SEE ALSO 🦋

if you're nosy (affectionate) and wanna read more, these are the icons you need to check out, iykyk:

• Kernel file ./drivers/dma/ste_dma40.c
• struct stedma40_platform_data(9)
• enum d40_command(9)
• struct d40_interrupt_lookup(9)
• struct d40_reg_val(9)
• struct d40_lli_pool(9)
• struct d40_desc(9)
• struct d40_lcla_pool(9)
• struct d40_phy_res(9)
• struct d40_chan(9)
• struct d40_base(9)

bestie this whole page lives under ./drivers/dma in the kernel tree, dated October 2026, and it's filed under struct d40_gen_dmac(9) — so go forth and read the source, mwah 💋✨

okay that's the whole thing, you ate that, periodt 🎀💅🫶