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-rw-r--r--cores/arduino/USBCore.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/cores/arduino/USBCore.h b/cores/arduino/USBCore.h
index 4210ced..0c63c2b 100644
--- a/cores/arduino/USBCore.h
+++ b/cores/arduino/USBCore.h
@@ -97,6 +97,9 @@
// bMaxPower in Configuration Descriptor
#define USB_CONFIG_POWER_MA(mA) ((mA)/2)
+#ifndef USB_CONFIG_POWER
+ #define USB_CONFIG_POWER (500)
+#endif
// bEndpointAddress in Endpoint Descriptor
#define USB_ENDPOINT_DIRECTION_MASK 0x80
@@ -267,7 +270,7 @@ typedef struct
{ 18, 1, USB_VERSION, _class,_subClass,_proto,_packetSize0,_vid,_pid,_version,_im,_ip,_is,_configs }
#define D_CONFIG(_totalLength,_interfaces) \
- { 9, 2, _totalLength,_interfaces, 1, 0, USB_CONFIG_BUS_POWERED | USB_CONFIG_REMOTE_WAKEUP, USB_CONFIG_POWER_MA(500) }
+ { 9, 2, _totalLength,_interfaces, 1, 0, USB_CONFIG_BUS_POWERED | USB_CONFIG_REMOTE_WAKEUP, USB_CONFIG_POWER_MA(USB_CONFIG_POWER) }
#define D_INTERFACE(_n,_numEndpoints,_class,_subClass,_protocol) \
{ 9, 4, _n, 0, _numEndpoints, _class,_subClass, _protocol, 0 }