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Extend USB_GetDeviceConfigDescriptor() routine to require the configuration number within the device to fetch, to add support for multi-configuration devices.

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This commit is contained in:
Dean Camera 2009-06-19 03:37:47 +00:00
parent 0d8679cf6b
commit dfa547164a
17 changed files with 49 additions and 40 deletions
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4
LUFA/Drivers/USB/HighLevel/ConfigDescriptor.c
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@ -31,7 +31,7 @@
#include "ConfigDescriptor.h"
#if defined(USB_CAN_BE_HOST)
uint8_t USB_GetDeviceConfigDescriptor(uint16_t* const ConfigSizePtr, void* BufferPtr)
uint8_t USB_GetDeviceConfigDescriptor(uint8_t ConfigNumber, uint16_t* const ConfigSizePtr, void* BufferPtr)
{
uint8_t ErrorCode;
@ -39,7 +39,7 @@ uint8_t USB_GetDeviceConfigDescriptor(uint16_t* const ConfigSizePtr, void* Buffe
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
.bRequest = REQ_GetDescriptor,
.wValue = (DTYPE_Configuration << 8),
.wValue = ((DTYPE_Configuration << 8) | (ConfigNumber - 1)),
.wIndex = 0,
.wLength = sizeof(USB_Descriptor_Configuration_Header_t),
};