diff options
| author | Dean Camera <dean@fourwalledcubicle.com> | 2010-04-28 07:48:26 +0000 |
|---|---|---|
| committer | Dean Camera <dean@fourwalledcubicle.com> | 2010-04-28 07:48:26 +0000 |
| commit | 59c4871f8011247a056f6ca2ca8aca89000e3841 (patch) | |
| tree | b26bb76882e9cca644ba0083bcc1c9ea50511463 /LUFA/Drivers/USB/LowLevel | |
| parent | 85aaaf84ce14568580a35c31e22062ba529b49fe (diff) | |
| download | lufa-59c4871f8011247a056f6ca2ca8aca89000e3841.tar.gz lufa-59c4871f8011247a056f6ca2ca8aca89000e3841.tar.bz2 lufa-59c4871f8011247a056f6ca2ca8aca89000e3841.zip | |
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.
Diffstat (limited to 'LUFA/Drivers/USB/LowLevel')
| -rw-r--r-- | LUFA/Drivers/USB/LowLevel/LowLevel.c | 2 | ||||
| -rw-r--r-- | LUFA/Drivers/USB/LowLevel/LowLevel.h | 8 |
2 files changed, 6 insertions, 4 deletions
diff --git a/LUFA/Drivers/USB/LowLevel/LowLevel.c b/LUFA/Drivers/USB/LowLevel/LowLevel.c index c9d0493b4..a088654f7 100644 --- a/LUFA/Drivers/USB/LowLevel/LowLevel.c +++ b/LUFA/Drivers/USB/LowLevel/LowLevel.c @@ -103,8 +103,6 @@ void USB_Init( #endif
USB_IsInitialized = true;
-
- sei();
}
void USB_ShutDown(void)
diff --git a/LUFA/Drivers/USB/LowLevel/LowLevel.h b/LUFA/Drivers/USB/LowLevel/LowLevel.h index 79261cd44..337a004a5 100644 --- a/LUFA/Drivers/USB/LowLevel/LowLevel.h +++ b/LUFA/Drivers/USB/LowLevel/LowLevel.h @@ -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.
|