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Added new stream creation function to the CDC Class drivers, to easily make standard streams from CDC Class driver instances.

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This commit is contained in:
Dean Camera 2009-11-10 06:22:03 +00:00
parent d6edfe35c8
commit c1782ac024
9 changed files with 88 additions and 47 deletions
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20
LUFA/Drivers/USB/Class/Device/CDC.c
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@ -234,4 +234,24 @@ void CDC_Device_SendControlLineStateChange(USB_ClassInfo_CDC_Device_t* const CDC
Endpoint_ClearIN();
}
void CDC_Device_CreateStream(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo, FILE* Stream)
{
*Stream = (FILE)FDEV_SETUP_STREAM(CDC_Device_putchar, CDC_Device_getchar, _FDEV_SETUP_RW);
fdev_set_udata(Stream, CDCInterfaceInfo);
}
static int CDC_Device_putchar(char c, FILE* Stream)
{
CDC_Device_SendByte((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream), c);
return 0;
}
static int CDC_Device_getchar(FILE* Stream)
{
if (!(CDC_Device_BytesReceived((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream))))
return -1;
return CDC_Device_ReceiveByte((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream));
}
#endif