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Add blocking versions of the CDC Class driver streams, for applications requiring blocking reads.

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This commit is contained in:
Dean Camera 2009-11-12 12:47:15 +00:00
parent 6a46f0025a
commit 652042111c
4 changed files with 51 additions and 0 deletions
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11
LUFA/Drivers/USB/Class/Host/CDC.c
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@ -353,6 +353,17 @@ static int CDC_Host_getchar(FILE* Stream)
return CDC_Host_ReceiveByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream));
}
static int CDC_Host_getchar_Blocking(FILE* Stream)
{
while (!(CDC_Host_BytesReceived((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream))))
{
CDC_Host_USBTask((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream));
USB_USBTask();
}
return CDC_Host_ReceiveByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream));
}
void CDC_Host_Event_Stub(void)
{