diff options
| author | Hemant Kumar <hemantk@codeaurora.org> | 2017-08-17 17:01:00 -0700 |
|---|---|---|
| committer | Ajay Agarwal <ajaya@codeaurora.org> | 2017-11-24 14:50:23 +0530 |
| commit | c611d78437adeb9299d8be3f7be78b9c153152e5 (patch) | |
| tree | ef718a4eacaf809228f496673f72878c31622b23 /include/linux | |
| parent | 03a86f5cb1adaa2e30a70eefd7bc1ab9509eea46 (diff) | |
usb: core: Add helper function to return controller id
Function provides controller id used by a remote entity
to identify which usb controller to program to initiate
data transfer.
Change-Id: Ied396f34496104c139a7910ee86844c124e6803f
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/usb.h | 1 | ||||
| -rw-r--r-- | include/linux/usb/hcd.h | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h index e8b2ed4ad851..f226476a2ea4 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -755,6 +755,7 @@ usb_get_sec_event_ring_dma_addr(struct usb_device *dev, extern dma_addr_t usb_get_dcba_dma_addr(struct usb_device *dev); extern dma_addr_t usb_get_xfer_ring_dma_addr(struct usb_device *dev, struct usb_host_endpoint *ep); +extern int usb_get_controller_id(struct usb_device *dev); /* Sets up a group of bulk endpoints to support multiple stream IDs. */ extern int usb_alloc_streams(struct usb_interface *interface, diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h index dff7adbc60bb..f603b46ff48a 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -405,6 +405,7 @@ struct hc_driver { struct usb_device *udev, struct usb_host_endpoint *ep); dma_addr_t (*get_dcba_dma_addr)(struct usb_hcd *hcd, struct usb_device *udev); + int (*get_core_id)(struct usb_hcd *hcd); }; static inline int hcd_giveback_urb_in_bh(struct usb_hcd *hcd) @@ -454,6 +455,7 @@ extern dma_addr_t usb_hcd_get_dcba_dma_addr(struct usb_device *udev); extern dma_addr_t usb_hcd_get_xfer_ring_dma_addr(struct usb_device *udev, struct usb_host_endpoint *ep); +extern int usb_hcd_get_controller_id(struct usb_device *udev); extern struct usb_hcd *usb_create_hcd(const struct hc_driver *driver, struct device *dev, const char *bus_name); |