Added error codes to most StillImageHost demo commands.

[pub/USBasp.git] / Demos / Host / LowLevel / StillImageHost / Lib / StillImageCommands.h

diff --git a/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.h b/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.h
index 2674b6a..6000510 100644 (file)
--- a/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.h
+++ b/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.h
@@ -50,6 +50,12 @@
 \r
                /** Pipe number of the Still Image events pipe */\r
                #define SIMAGE_EVENTS_PIPE             0x03\r
+               \r
+               /** Length in bytes of a given Unicode string's character length\r
+                *\r
+                *  \param[in] chars  Total number of Unicode characters in the string\r
+                */\r
+               #define UNICODE_STRING_LENGTH(chars)   (chars << 1)\r
 \r
                /** Timeout period between the issuing of a command to a device, and the reception of the first packet */\r
                #define COMMAND_DATA_TIMEOUT_MS        5000\r
@@ -101,8 +107,8 @@
        /* Function Prototypes: */\r
                void    SImage_SendBlockHeader(void);\r
                uint8_t SImage_RecieveBlockHeader(void);\r
-               void    SImage_RecieveEventHeader(void);\r
-               void    SImage_SendData(void* Buffer, uint16_t Bytes);\r
+               uint8_t SImage_RecieveEventHeader(void);\r
+               uint8_t SImage_SendData(void* Buffer, uint16_t Bytes);\r
                uint8_t SImage_ReadData(void* Buffer, uint16_t Bytes);\r
                bool    SImage_IsEventReceived(void);\r
                uint8_t SImage_ClearPipeStall(const uint8_t EndpointNum);\r