usbdev_file_operations 2739 drivers/usb/core/devio.c const struct file_operations usbdev_file_operations = { usbdev_file_operations 2802 drivers/usb/core/devio.c cdev_init(&usb_device_cdev, &usbdev_file_operations); usbdev_file_operations 185 drivers/usb/core/usb.h extern const struct file_operations usbdev_file_operations;