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USB_Init() no longer calls sei() to enable global interrupts - this must now be done in the user application once all init code has run.

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This commit is contained in:
Dean Camera 2010-04-28 07:48:26 +00:00
parent 85aaaf84ce
commit 59c4871f80
135 changed files with 181 additions and 61 deletions
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8
LUFA/Drivers/USB/LowLevel/LowLevel.h
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@ -236,8 +236,12 @@
* allow for device connection to a host when in device mode, or for device enumeration while in
* host mode.
*
* As the USB library relies on USB interrupts for some of its functionality, this routine will
* enable global interrupts.
* As the USB library relies on interrupts for the device and host mode enumeration processes,
* the user must enable global interrupts before or shortly after this function is called. In
* device mode, interrupts must be enabled within 500ms of this function being called to ensure
* that the host does not time out whilst enumerating the device. In host mode, interrupts may be
* enabled at the application's leisure however enumeration will not begin of an attached device
* until after this has occurred.
*
* Calling this function when the USB interface is already initialized will cause a complete USB
* interface reset and re-enumeration.