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authorVincent Palatin <vpalatin@chromium.org>2015-05-04 11:30:54 -0600
committerSimon Glass <sjg@chromium.org>2015-05-14 18:49:33 -0600
commit08f3bb0bcd84b57cc627ab0acda8aebacf27544e (patch)
treebf28622599d080f8c11754a53a6f8387a5529177 /include/usb.h
parent6a72e804a2b27e95cc7394876cc6a57f29e70817 (diff)
usb: add device connection/disconnection detection
Provide a function to detect USB device insertion/removal in order to avoid having to do USB enumeration in a tight loop when trying to detect peripheral hotplugging. Signed-off-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Stefan Reinauer <reinauer@chromium.org> Tested-by: Stefan Reinauer <reinauer@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/usb.h')
-rw-r--r--include/usb.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/usb.h b/include/usb.h
index 5043bc3984..c709ce2cf6 100644
--- a/include/usb.h
+++ b/include/usb.h
@@ -265,6 +265,7 @@ int usb_kbd_deregister(int force);
/* routines */
int usb_init(void); /* initialize the USB Controller */
int usb_stop(void); /* stop the USB Controller */
+int usb_detect_change(void); /* detect if a USB device has been (un)plugged */
int usb_set_protocol(struct usb_device *dev, int ifnum, int protocol);
@@ -290,6 +291,7 @@ int usb_get_class_descriptor(struct usb_device *dev, int ifnum,
int usb_clear_halt(struct usb_device *dev, int pipe);
int usb_string(struct usb_device *dev, int index, char *buf, size_t size);
int usb_set_interface(struct usb_device *dev, int interface, int alternate);
+int usb_get_port_status(struct usb_device *dev, int port, void *data);
/* big endian -> little endian conversion */
/* some CPUs are already little endian e.g. the ARM920T */