ahoneybun/qmk_firmware
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Minor code style fixes, documentation improvements.

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This commit is contained in:
Dean Camera 2014-07-22 19:25:41 +10:00
parent 89df1efcf3
commit 4c06a9c88f
2 changed files with 6 additions and 4 deletions
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9
LUFA/Drivers/USB/Core/XMEGA/USBController_XMEGA.c
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@ -110,7 +110,6 @@ void USB_Disable(void)
void USB_ResetInterface(void)
{
uint8_t PrescalerNeeded;
uint8_t nbit = 0;
#if defined(USB_DEVICE_OPT_FULLSPEED)
if (USB_Options & USB_DEVICE_OPT_LOWSPEED)
@ -121,12 +120,14 @@ void USB_ResetInterface(void)
PrescalerNeeded = F_USB / 6000000;
#endif
while (PrescalerNeeded && nbit < 7) {
uint8_t DividerIndex = 0;
while (PrescalerNeeded > 0)
{
DividerIndex++;
PrescalerNeeded >>= 1;
nbit++;
}
CLK.USBCTRL = (nbit - 1) << CLK_USBPSDIV_gp;
CLK.USBCTRL = (DividerIndex - 1) << CLK_USBPSDIV_gp;
if (USB_Options & USB_OPT_PLLCLKSRC)
CLK.USBCTRL |= (CLK_USBSRC_PLL_gc | CLK_USBSEN_bm);