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authorDean Camera <dean@fourwalledcubicle.com>2009-07-21 13:31:21 +0000
committerDean Camera <dean@fourwalledcubicle.com>2009-07-21 13:31:21 +0000
commite071f3897a0946c6be1e1b5e1f78eda8dcbf6fc7 (patch)
tree51ac5c80564fd76c93a357ee4d52a347384ac84b /Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c
parent44179abcf85acb14fb3aff72ce50ae84281c0f2e (diff)
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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/StillImageHost/Lib/StillImageCommands.c')
-rw-r--r--Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c b/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c
index e0d71a059..970df4f87 100644
--- a/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c
+++ b/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c
@@ -152,12 +152,9 @@ uint8_t SImage_RecieveBlockHeader(void)
}
/* Check to see if the device was disconnected, if so exit function */
- if (!(USB_IsConnected))
- {
- /* Return error code */
- return PIPE_RWSTREAM_DeviceDisconnected;
- }
- };
+ if (USB_HostState == HOST_STATE_Unattached)
+ return PIPE_RWSTREAM_DeviceDisconnected;
+ }
/* Freeze OUT pipe after use */
Pipe_SelectPipe(SIMAGE_DATA_OUT_PIPE);