STRUCT SH_DMAE_CHANNEL(9)

✨ struct sh_dmae_channel(9) ✨

okay so bestie, welcome to the Kernel API Manual 🫶 — this is the page for struct sh_dmae_channel, and it's literally the platform data for a DMAC channel. it's giving "small struct, big responsibilities" 💅

🌸 NAME 🌸

struct sh_dmae_channel — the DMAC channel platform data, no cap 🎀

🦋 SYNOPSIS 🦋

struct sh_dmae_channel {
    unsigned int    offset;
    unsigned int    dmars;
    unsigned int    chclr_offset;
    unsigned char   dmars_bit;
    unsigned char   chclr_bit;
 };

👑 Members 👑

• offset — the register offset within the main IOMEM resource. like, where the channel's regs actually live inside the bigger block 🗺️
• dmars — the channel's DMARS register offset ✨
• chclr_offset — the channel's CHCLR register offset 🎯
• dmars_bit — the channel's DMARS field offset within the register. it's a bit field situation, iykyk 🔍
• chclr_bit — the bit position that you set to reset the channel. set the bit → channel goes bye 👋 💀

fr fr, dmars_bit is an offset within the register and chclr_bit is a bit position — two different flavours of "bit", don't mix them up bestie 🙈

🌈 SEE ALSO 🌈

• Kernel file ./include/linux/sh_dma.h
• struct sh_dmae_pdata(9)

and that's the whole vibe check, bestie — go read those headers, slay 💖

shipped from ./include/linux, dated October 2026 ⭐ — that's the source and version, periodt 🎀