STRUCT XPSGTR_SSC(9)

💅 struct xpsgtr_ssc(9) — the kernel API manual, but make it cute

okay bestie, so this is a page from the Kernel API Manual and it's all about one little struct. no cap, it's a whole vibe and honestly kinda iconic 🎀

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✨ NAME ✨

struct xpsgtr_ssc — literally just the structure that holds the SSC settings for a lane 🦋

iykyk — SSC = Spread Spectrum Clock. we'll get there, don't worry 💖

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🌸 SYNOPSIS 🌸

struct xpsgtr_ssc {
    u32 refclk_rate;
    u8 pll_ref_clk;
    u32 steps;
    u32 step_size;
 };

look at her. four fields. no drama. main character energy fr fr 👑

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🎀 Members 🎀

• refclk_rate — the PLL reference clock frequency, aka how fast the reference clock is going ⭐
• pll_ref_clk — the value you write to the register for the corresponding ref clk rate. like, this is what goes in the box for that rate, periodt 💅
• steps — the number of steps of SSC (Spread Spectrum Clock). yes, SSC again. she's everywhere 🙈
• step_size — the step size of each step. every step has a size and this is it 🦋

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🔥 SEE ALSO 🔥

• the kernel file ./drivers/phy/xilinx/phy-zynqmp.c (go read it, it's giving source code realness 💀)
• struct xpsgtr_phy(9)
• struct xpsgtr_dev(9)
• xpsgtr_save_lane_regs(9)
• xpsgtr_restore_lane_regs(9)
• xpsgtr_bypass_scrambler_8b10b(9)

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ngl bestie, that's the whole page. no hidden lore, no surprise options, just the struct and her friends 🫶

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okay that's it, that's the page ✨ thank you for coming to my ted talk — this lil guy lives in ./drivers/phy/xilinx, dated October 2026, and she goes by struct xpsgtr_ssc(9) if you ever need to look her up again 💜🎀🌈