device_match...ver_override(9)

💅 device_match_driver_override(9) 💅

okay bestie, so this is a page straight out of the Kernel API Manual and it's literally all about one tiny function that plays matchmaker between a driver and a device's driver_override. no cap, it's short but it's iconic. let's get into it 🎀

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✨ NAME ✨

device_match_driver_override — the function that matches a driver against the device's driver_override. that's the whole vibe. it checks if the override says "yes this one" about a given driver 🫶

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✨ SYNOPSIS ✨

int device_match_driver_override (struct device *dev , const struct
device_driver *drv );

like, two arguments in, one int out. simple. gorgeous. no notes 💅

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✨ ARGUMENTS ✨

• dev — the device you're checking, bestie. that's the one getting the vibe check 🌸
• drv — the driver you're matching it against. the potential main character in question 👑

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✨ DESCRIPTION ✨

okay so here's the tea ☕ this function returns a number that tells you everything about the override situation, and the sign is the whole story:

• > 0 — a driver override is set, and it matches the given driver. slay 💖 they're a match, periodt.
• 0 — a driver override is set, but it does not match this driver. not me getting rejected 😭
• < 0 — no driver override is set at all. literally nothing there. the void. 💀

so yeah, positive is a yes, zero is a no, negative is a "girl there's nothing here to compare." one function, three moods 🔥

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✨ SEE ALSO ✨

the whole friend group, fr fr — go read these too:

Kernel file ./include/linux/device.h

• struct subsys_interface(9)
• struct device_attribute(9)
• struct dev_ext_attribute(9)
• DEVICE_ATTR(9)
• DEVICE_ATTR_RW(9)
• DEVICE_ATTR_ADMIN_RW(9)
• DEVICE_ATTR_RW_NAMED(9)
• DEVICE_ATTR_RO(9)
• DEVICE_ATTR_ADMIN_RO(9)
• DEVICE_ATTR_RO_NAMED(9)
• DEVICE_ATTR_WO(9)
• DEVICE_ATTR_WO_NAMED(9)
• DEVICE_ULONG_ATTR(9)
• DEVICE_INT_ATTR(9)
• DEVICE_BOOL_ATTR(9)
• DEVICE_STRING_ATTR_RO(9)
• enum device_link_state(9)
• enum dl_dev_state(9)
• enum device_removable(9)
• struct dev_links_info(9)
• struct dev_msi_info(9)
• enum device_physical_location_panel(9)
• enum device_physical_location_vertical_position(9)
• enum device_physical_location_horizontal_position(9)
• struct device_physical_location(9)
• enum struct_device_flags(9)
• struct device(9)
• struct device_link(9)
• device_set_driver_override(9)
• device_has_driver_override(9)
• device_iommu_mapped(9)
• dev_name(9)
• dev_bus_name(9)
• device_find_child_by_name(9)
• device_find_any_child(9)
• device_lock_set_class(9)
• device_lock_reset_class(9)

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and that's the whole page, bestie 🦋 this lil cutie lives in ./include/linux, dated October 2026, and its manual page name is device_match...ver_override(9) — go forth and match some drivers ✨💜