STRUCT EXYNOS_MBOX_DRIVER_DATA(9)

💖 NAME 💖

struct exynos_mbox_driver_data — bestie, it's literally the platform-specific mailbox configuration struct, no cap ✨

So this is from the Kernel API Manual, and honestly? It's giving "small but essential." 🎀

🌸 SYNOPSIS 🌸

struct exynos_mbox_driver_data {
    u32 intgr;
    u32 intgr_shift;
    u32 intmr;
    u32 intmr_mask;
    int num_chans;
 };

Okay so that's the whole struct. Five fields. Not a single one more. She's compact, she's efficient, she's an icon 💅

🦋 Members 🦋

Lowkey the most important part, so pay attention bestie 🫶

• intgr — this one's the offset to the IRQ generation register, aka the doorbell to the APM co-processor 🔔 Like, you're literally ringing the bell to get its attention. Obsessed.
• intgr_shift — the shift you apply to the value you're writing to that IRQ generation register. Yes, a shift. On the value. That value. That's the vibe ✨
• intmr — the offset to the IRQ mask register. Different register, different offset, don't mix them up 🙈
• intmr_mask — the actual value you write to the mask register to mask out all the interrupts. All of them. Every single one. Silence. 🤫
• num_chans — the number of channels the mailbox can support. And just so we're clear, this is hardware capability — it's not vibes-based, it's what the hardware can actually do 🔥

🌈 SEE ALSO 🌈

• Kernel file ./drivers/mailbox/exynos-mailbox.c
• struct exynos_mbox(9)

Go read those too, iykyk 💜

✨ cute little sign-off ✨

So this page lives in ./drivers/mailbox (yes, that's the source), it's tagged October 2026 for the version/date sitch, and the whole thing is filed under struct exyno..._driver_data(9) because the header was too iconic to fit the full name 😭💀 Slay, go configure some mailboxes, bestie! 🧚⭐🍓 👑