Replace '>' with constant ELM327_READY_CHAR

[elmcan.git] / module / elmcan.c

diff --git a/module/elmcan.c b/module/elmcan.c
index 494dceb445f885b1020ce183e41d3c8febb30ac2..e4552024d3ae3015657133f74fc87e0fba5eefe7 100644 (file)
--- a/module/elmcan.c
+++ b/module/elmcan.c
@@ -57,6 +57,7 @@ MODULE_AUTHOR("Max Staudt <max-linux@enpas.org>");
 
 #define ELM327_MAGIC_CHAR 'y'
 #define ELM327_MAGIC_STRING "y"
+#define ELM327_READY_CHAR '>'
 
 
 /* Bits in elm->cmds_todo */
@@ -623,7 +624,7 @@ static void elm327_parse_rxbuf(struct elmcan *elm)
                                elm->state = ELM_GETPROMPT;
                                i++;
                                break;
-                       } else if (elm->rxbuf[i] == '>') {
+                       } else if (elm->rxbuf[i] == ELM327_READY_CHAR) {
                                elm327_send(elm, ELM327_MAGIC_STRING, 1);
                                i++;
                                break;
@@ -637,7 +638,7 @@ static void elm327_parse_rxbuf(struct elmcan *elm)
 
        case ELM_GETPROMPT:
                /* Wait for '>' */
-               if (elm->rxbuf[elm->rxfill - 1] == '>') {
+               if (elm->rxbuf[elm->rxfill - 1] == ELM327_READY_CHAR) {
                        elm327_handle_prompt(elm);
                }
 
@@ -660,7 +661,7 @@ static void elm327_parse_rxbuf(struct elmcan *elm)
                        elm327_panic(elm);
                } else if (len == elm->rxfill) {
                        if (elm->state == ELM_RECEIVING
-                               && elm->rxbuf[elm->rxfill - 1] == '>') {
+                               && elm->rxbuf[elm->rxfill - 1] == ELM327_READY_CHAR) {
                                /* The ELM327's AT ST response timeout ran out,
                                 * so we got a prompt.
                                 * Clear RX buffer and restart listening.