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Add new attributes to the HID Report Parser and HID Host Mode Class driver to keep track of the largest report the device can send for buffer allocation purposes. Change MouseHostWithParser and KeyboardHostWithParser demos to only allocate the needed number of bytes.

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This commit is contained in:
Dean Camera
2009-09-21 12:23:09 +00:00
parent 3ffa7543a0
commit 242303c160
9 changed files with 41 additions and 25 deletions
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5
LUFA/Drivers/USB/Class/Host/HID.c
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@@ -101,6 +101,7 @@ uint8_t HID_Host_ConfigurePipes(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo
}
}
HIDInterfaceInfo->State.LargestReportSize = 8;
HIDInterfaceInfo->State.IsActive = true;
return HID_ENUMERROR_NoError;
}
@@ -288,6 +289,7 @@ uint8_t USB_HID_Host_SetBootProtocol(USB_ClassInfo_HID_Host_t* const HIDInterfac
if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)
return ErrorCode;
HIDInterfaceInfo->State.LargestReportSize = 8;
HIDInterfaceInfo->State.UsingBootProtocol = true;
return HOST_SENDCONTROL_Successful;
@@ -339,6 +341,9 @@ uint8_t USB_HID_Host_SetReportProtocol(USB_ClassInfo_HID_Host_t* const HIDInterf
return HID_ERROR_LOGICAL | ErrorCode;
}
uint8_t LargestReportSizeBits = HIDInterfaceInfo->Config.HIDParserData->LargestReportSizeBits;
HIDInterfaceInfo->State.LargestReportSize = (LargestReportSizeBits >> 3) + ((LargestReportSizeBits & 0x07) != 0);
return 0;
}