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Move check for devices not supporting internal serials in demos which make use of USE_INTERNAL_SERIAL to Descriptors.c from Descriptors.h so that the warning is only generated at most once per compilation.

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This commit is contained in:
Dean Camera 2009-09-01 11:16:57 +00:00
parent dac7b046fd
commit bda4bd4501
17 changed files with 97 additions and 33 deletions
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12
Demos/Device/ClassDriver/MassStorage/Descriptors.c
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@ -37,6 +37,18 @@
#include "Descriptors.h"
/* On some devices, there is a factory set internal serial number which can be automatically sent to the host as
* the device's serial number when the Device Descriptor's .SerialNumStrIndex entry is set to USE_INTERNAL_SERIAL.
* This allows the host to track a device across insertions on different ports, allowing them to retain allocated
* resources like COM port numbers and drivers. On demos using this feature, give a warning on unsupported devices
* so that the user can supply their own serial number descriptor instead or remove the USE_INTERNAL_SERIAL value
* from the Device Descriptor (forcing the host to generate a serial number for each device from the VID, PID and
* port location).
*/
#if (USE_INTERNAL_SERIAL == NO_DESCRIPTOR)
#warning USE_INTERNAL_SERIAL is not available on this AVR - please manually construct a device serial descriptor.
#endif
/** Device descriptor structure. This descriptor, located in FLASH memory, describes the overall
* device characteristics, including the supported USB version, control endpoint size and the
* number of device configurations. The descriptor is read out by the USB host when the enumeration