diff --git a/utils.h b/utils.h
index 6f6539f..30c2ccd 100644
--- a/utils.h
+++ b/utils.h
@@ -61,11 +61,14 @@
 // chrome os firmware.
 std::string GetFirmwareVersion();
 
-// Returns the ec version or an empty string if the system is not running a
-// custom chrome os ec. If input_line is not NULL, reads from this line,
-// otherwise polls the system for the input line. input_line should contain
-// fw_version=value.
-std::string GetECVersion(const char* input_line);
+// Parse the firmware version from one line of output from the
+// "mosys" command.
+std::string ParseECVersion(std::string input_line);
+
+// Reads and parses the ec version from the "mosys" command.  Returns
+// the version found, or an empty string if the system is not running a
+// custom chrome os ec.
+std::string GetECVersion();
 
 // Writes the data passed to path. The file at path will be overwritten if it
 // exists. Returns true on success, false otherwise.