/* NOTE: these two are _only_ in audio endpoints. */ /* use USB_DT_ENDPOINT*_SIZE in bLength, not sizeof. */ __u8 bRefresh; __u8 bSynchAddress; } __attribute__ ((packed));
const char *product_desc; /* product/vendor string */ int speed; /* Speed for this roothub. * May be different from * hcd->driver->flags & HCD_MASK */ char irq_descr[24]; /* driver + bus # */
struct timer_list rh_timer; /* drives root-hub polling */ struct urb *status_urb; /* the current status urb */ #ifdef CONFIG_PM struct work_struct wakeup_work; /* for remote wakeup */ #endif struct work_struct died_work; /* for when the device dies */
enum usb_dev_authorize_policy dev_policy; ... /* The HC driver's private data is stored at the end of * this structure. */ unsigned long hcd_priv[0] __attribute__ ((aligned(sizeof(s64)))); };
/* * device support */ .free_dev = ehci_remove_device, };
void ehci_init_driver(struct hc_driver *drv, const struct ehci_driver_overrides *over) { /* Copy the generic table to drv and then apply the overrides */ *drv = ehci_hc_driver;
if (over) { drv->hcd_priv_size += over->extra_priv_size; if (over->reset) drv->reset = over->reset; if (over->port_power) drv->port_power = over->port_power; } }
static int __init ehci_hcd_init(void) { int retval = 0;
if (usb_disabled()) return -ENODEV;
printk(KERN_INFO "%s: " DRIVER_DESC "\n", hcd_name); set_bit(USB_EHCI_LOADED, &usb_hcds_loaded); if (test_bit(USB_UHCI_LOADED, &usb_hcds_loaded) || test_bit(USB_OHCI_LOADED, &usb_hcds_loaded)) printk(KERN_WARNING "Warning! ehci_hcd should always be loaded" " before uhci_hcd and ohci_hcd, not after\n");
struct usb_dynids dynids; struct usbdrv_wrap drvwrap; unsigned int no_dynamic_id:1; unsigned int supports_autosuspend:1; unsigned int disable_hub_initiated_lpm:1; unsigned int soft_unbind:1; };
struct urb { /* private: usb core and host controller only fields in the urb */ struct kref kref; /* reference count of the URB */ int unlinked; /* unlink error code */ void *hcpriv; /* private data for host controller */ atomic_t use_count; /* concurrent submissions counter */ atomic_t reject; /* submissions will fail */
/* public: documented fields in the urb that can be used by drivers */ struct list_head urb_list; /* list head for use by the urb's * current owner */ struct list_head anchor_list; /* the URB may be anchored */ struct usb_anchor *anchor; struct usb_device *dev; /* (in) pointer to associated device */ struct usb_host_endpoint *ep; /* (internal) pointer to endpoint */ unsigned int pipe; /* (in) pipe information */ unsigned int stream_id; /* (in) stream ID */ int status; /* (return) non-ISO status */ unsigned int transfer_flags; /* (in) URB_SHORT_NOT_OK | ...*/ void *transfer_buffer; /* (in) associated data buffer */ dma_addr_t transfer_dma; /* (in) dma addr for transfer_buffer */ struct scatterlist *sg; /* (in) scatter gather buffer list */ int num_mapped_sgs; /* (internal) mapped sg entries */ int num_sgs; /* (in) number of entries in the sg list */ u32 transfer_buffer_length; /* (in) data buffer length */ u32 actual_length; /* (return) actual transfer length */ unsigned char *setup_packet; /* (in) setup packet (control only) */ dma_addr_t setup_dma; /* (in) dma addr for setup_packet */ int start_frame; /* (modify) start frame (ISO) */ int number_of_packets; /* (in) number of ISO packets */ int interval; /* (modify) transfer interval * (INT/ISO) */ int error_count; /* (return) number of ISO errors */ void *context; /* (in) context for completion */ usb_complete_t complete; /* (in) completion routine */ struct usb_iso_packet_descriptor iso_frame_desc[0]; /* (in) ISO ONLY */ };
int usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request, __u8 requesttype, __u16 value, __u16 index, void *data, __u16 size, int timeout); int usb_interrupt_msg(struct usb_device *usb_dev, unsigned int pipe, void *data, int len, int *actual_length, int timeout); int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe, void *data, int len, int *actual_length, int timeout);
