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USB_INTERFACE_CLAIME(9) Host-Side Data Types and Macro USB_INTERFACE_CLAIME(9)

NAME

usb_interface_claimed - returns true iff an interface is claimed

SYNOPSIS

int usb_interface_claimed(struct usb_interface * iface);

ARGUMENTS

iface

the interface being checked

DESCRIPTION

Returns true (nonzero) iff the interface is claimed, else false (zero). Callers must own the driver model´s usb bus readlock. So driver probe entries don´t need extra locking, but other call contexts may need to explicitly claim that lock.

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May 2024 Kernel Hackers Manual 2.6.