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usb: document usb_status_event and #ifdef it with USB_STATUS_BY_EVENT

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Change-Id: I62cdb8ad71a598279fe99cc91d87eafda26cbbc7
Reviewed-on: http://gerrit.rockbox.org/1095
Reviewed-by: Amaury Pouly <amaury.pouly@gmail.com>
This commit is contained in:
Amaury Pouly 2015-01-02 12:38:34 +01:00
parent 268114ee66
commit ae37d1944f
1 changed files with 3 additions and 1 deletions
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4
firmware/export/usb.h
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@ -110,8 +110,10 @@ void usb_wait_for_disconnect(struct event_queue *q);
int usb_wait_for_disconnect_w_tmo(struct event_queue *q, int ticks);
bool usb_inserted(void); /* return the official value, what's been reported to the threads */
int usb_detect(void); /* return the raw hardware value - nothing/pc/charger */
/* For tick-less USB monitoring (USB_STATUS_BY_EVENT) */
#ifdef USB_STATUS_BY_EVENT
/* Notify USB insertion state (USB_INSERTED or USB_EXTRACTED) */
void usb_status_event(int current_status);
#endif
#ifdef HAVE_USB_POWER
bool usb_powered(void);
#ifdef HAVE_USB_CHARGING_ENABLE