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| author | Dean Camera <dean@fourwalledcubicle.com> | 2009-07-21 13:31:21 +0000 |
|---|---|---|
| committer | Dean Camera <dean@fourwalledcubicle.com> | 2009-07-21 13:31:21 +0000 |
| commit | e071f3897a0946c6be1e1b5e1f78eda8dcbf6fc7 (patch) | |
| tree | 51ac5c80564fd76c93a357ee4d52a347384ac84b /Demos/Host/LowLevel/PrinterHost/Lib | |
| parent | 44179abcf85acb14fb3aff72ce50ae84281c0f2e (diff) | |
| download | lufa-e071f3897a0946c6be1e1b5e1f78eda8dcbf6fc7.tar.gz lufa-e071f3897a0946c6be1e1b5e1f78eda8dcbf6fc7.tar.bz2 lufa-e071f3897a0946c6be1e1b5e1f78eda8dcbf6fc7.zip | |
Added new USB_DeviceState variable to keep track of the current Device mode USB state.
Added new Endpoint_ClearStatusStage() convenience function to assist with the status stages of control transfers.
Removed vague USB_IsConnected global - test USB_DeviceState or USB_HostState explicitly to gain previous functionality.
Removed USB_IsSuspended global - test USB_DeviceState against DEVICE_STATE_Suspended instead.
Fixed possible enumeration errors from spinloops which may fail to exit if the USB connection is severed before the exit condition becomes true.
Diffstat (limited to 'Demos/Host/LowLevel/PrinterHost/Lib')
| -rw-r--r-- | Demos/Host/LowLevel/PrinterHost/Lib/PrinterCommands.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/Demos/Host/LowLevel/PrinterHost/Lib/PrinterCommands.c b/Demos/Host/LowLevel/PrinterHost/Lib/PrinterCommands.c index 4c88bb4f2..cb051cdf1 100644 --- a/Demos/Host/LowLevel/PrinterHost/Lib/PrinterCommands.c +++ b/Demos/Host/LowLevel/PrinterHost/Lib/PrinterCommands.c @@ -54,7 +54,11 @@ uint8_t Printer_SendData(Printer_Data_t* PrinterCommands) return ErrorCode;
Pipe_ClearOUT();
- while (!(Pipe_IsOUTReady()));
+ while (!(Pipe_IsOUTReady()))
+ {
+ if (USB_HostState == HOST_STATE_Unattached)
+ return PIPE_RWSTREAM_DeviceDisconnected;
+ }
Pipe_Freeze();
|