accel_set_de...tance_params(9)

💅 accel_set_device_instance_params — the lil setup function for accel devices (from the Kernel API Manual, bestie)

okay so picture this: you've got an accel device and it's giving brand new, no identity yet. this function is literally the moment it gets its whole vibe set up. it's a kernel function, section 9, and it's lowkey the glow-up moment for your device instance. periodt. ✨

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🌸 SYNOPSIS 🌸

void accel_set_device_instance_params(struct device *kdev, int index);

no return value, bestie — it's a void function, it just does the thing and dips. 🫶

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🎀 ARGUMENTS 🎀

• kdev — pointer to the device instance. like, the actual device we're about to dress up. 👑
• index — the minor's index. yes that's literally all the manpage says about it, don't come for me. 😭

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✨ DESCRIPTION ✨

so here's the tea 🍓 — this function builds the dev_t of the device using the accel major plus the device's minor number. that's the whole identity card, fr fr.

and that's not all, because on top of that it also sets two things on the device instance:

• its class → the accel sysfs class 🌈
• its type → the accel device type ⭐

(respectively, obviously — class gets the class, type gets the type, no crossover, we're not messy here 💅)

so yeah. one call, dev_t created, class and type assigned, device fully situated. main character energy from the jump. 🦋

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/accel/drm_accel.c — go read the source, iykyk 📖
• accel_debugfs_register(9)
• accel_open(9)

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ngl this one's short but it's load-bearing — skip it and your device instance is just out here with no dev_t, no class, no type. embarrassing. don't do that to her. 🙈

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kisses from the ./drivers/accel directory, dated October 2026, filed under accel_set_de...tance_params(9) in the Kernel API Manual — mwah, go slay your driver 🧚‍♀️💜