291 struct controller {  struct
292 	struct controller *next;  argument
295 	void __iomem *hpc_reg;	/* cookie for our pci controller location */  argument
307 	u8 bus;			/* bus number for the pci hotplug controller */  argument
308 	u8 rev;
309 	u8 slot_device_offset;
310 	u8 first_slot;
311 	u8 add_support;
312 	u8 push_flag;
313 	u8 push_button;			/* 0 = no pushbutton, 1 = pushbutton present */
314 	u8 slot_switch_type;		/* 0 = no switch, 1 = switch present */
315 	u8 defeature_PHP;		/* 0 = PHP not supported, 1 = PHP supported */
316 	u8 alternate_base_address;	/* 0 = not supported, 1 = supported */
317 	u8 pci_config_space;		/* Index/data access to working registers 0 = not supported, 1 = supported */
318 	u8 pcix_speed_capability;	/* PCI-X */
319 	u8 pcix_support;		/* PCI-X */
320 	u16 vendor_id;
321 	struct work_struct int_task_event;
322 	wait_queue_head_t queue;	/* sleep & wake process */
323 	struct dentry *dentry;		/* debugfs dentry */