cdx_mcdi_reset_device(9)

💅 cdx_mcdi_reset_device(9) — like, the Kernel API Manual page, bestie 🎀

Okay so picture this: you're deep in the Kernel API Manual (yes, that's the manual name, we're being official ✨) and you land on cdx_mcdi_reset_device. It does exactly one iconic thing: it resets the cdx device that lives at bus_num:dev_num. That's it. That's the whole vibe. 💜

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✨ NAME ✨

cdx_mcdi_reset_device — reset the cdx device represented by bus_num:dev_num 🦋

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🌸 SYNOPSIS 🌸

int cdx_mcdi_reset_device (struct cdx_mcdi *cdx , u8 bus_num , u8 dev_num );

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🎀 ARGUMENTS 🎀

• cdx — a pointer to the MCDI interface. like, the whole entry point, no cap 👑
• bus_num — the bus number. literally just the bus number 🚌
• dev_num — the device number. the other half of the address, iykyk 🔥

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⭐ RETURN ⭐

0 on success, <0 on failure. so if you get a negative number back, that's your sign something went sideways 😭

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🫶 SEE ALSO 🫶

Kernel file ./drivers/cdx/controller/mcdi_functions.h — go read it, it's giving main character energy 📖

• cdx_mcdi_get_num_buses(9)
• cdx_mcdi_get_num_devs(9)
• cdx_mcdi_get_dev_config(9)
• cdx_mcdi_bus_enable(9)
• cdx_mcdi_bus_disable(9)
• cdx_mcdi_write_msi(9)
• cdx_mcdi_bus_master_enable(9)
• cdx_mcdi_msi_enable(9)

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That's the whole page, bestie — no filler, all facts, and every single one of those SEE ALSO functions is there because the original said so, periodt 💅

Kernel API Manual · ./drivers/cdx/controller · October 2026 — slay, go reset something responsibly 🌈💖