Fix typo in gain config

git-svn-id: https://bucket.mit.edu/svn/nilm/acquisition/ethstream@10877 ddd99763-3ecb-0310-9145-efcb8ce7c51f

ethstream.c

@@ -179,7 +179,7 @@ int main(int argc, char *argv[])
 					info("error: too many gains specified\n");
 					goto printhelp;
 				}
-				if (!(tmp == 0 || tmp == 1 || tmp == 2 || tmp == 4 || tmp == 8)) {
+				if (!(tmp == 0 || tmp == 1 || tmp == 2 || tmp == 3 || tmp == 8)) {
 				info("error: invalid gain specified\n");
 					goto printhelp;
 				}

ue9.h

@@ -68,6 +68,7 @@ struct ue9ControlConfig {
 	uint16_t dac1;
 };
 
+/* These are correct! 0, 1, 2, 3, 8 */
 #define UE9_UNIPOLAR_GAIN1 0x00
 #define UE9_UNIPOLAR_GAIN2 0x01
 #define UE9_UNIPOLAR_GAIN4 0x02