From ccebe78c6caa4f05dcb24cba4f146fc6c95ab487 Mon Sep 17 00:00:00 2001
From: Evgeny Zinoviev <me@ch1p.io>
Date: Thu, 10 Aug 2023 03:01:18 +0300
Subject: rename source file

---
 intel_backlight_ctl.c | 137 ++++++++++++++++++++++++++++++++++++++++++++++++++
 main.c                | 137 --------------------------------------------------
 2 files changed, 137 insertions(+), 137 deletions(-)
 create mode 100644 intel_backlight_ctl.c
 delete mode 100644 main.c

diff --git a/intel_backlight_ctl.c b/intel_backlight_ctl.c
new file mode 100644
index 0000000..70f6822
--- /dev/null
+++ b/intel_backlight_ctl.c
@@ -0,0 +1,137 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+#include <stdio.h>
+#include <math.h>
+#include <string.h>
+#include <stdbool.h>
+
+#define CUR_PATH "/sys/class/backlight/intel_backlight/brightness"
+#define MAX_PATH "/sys/class/backlight/intel_backlight/max_brightness"
+#define STEP     10
+
+struct brightness {
+    int max_raw;
+    int raw;
+    int percents;
+};
+
+
+
+int readval(const char *path, int *dst)
+{
+    FILE *f = fopen(path, "r");
+    int retval = 1;
+
+    if (f == NULL) {
+        perror(path);
+        goto end;
+    }
+
+    int raw;
+    if (fscanf(f, "%d", &raw) != 1) {
+        perror(path);
+        goto end;
+    }
+
+    *dst = raw;
+    retval = 0;
+
+end:
+    if (f != NULL)
+        fclose(f);
+    return retval;
+}
+
+
+int get(struct brightness *dst)
+{
+    int retval = 1;
+    if (readval(CUR_PATH, &dst->raw))
+        goto end;
+    if (readval(MAX_PATH, &dst->max_raw))
+        goto end;
+
+    dst->percents = (int)round((double)dst->raw*100/dst->max_raw);
+    retval = 0;
+
+end:
+    return retval;
+}
+
+int set(struct brightness *src)
+{
+    int retval = 1;
+    FILE *f = fopen(CUR_PATH, "w");
+    if (!f) {
+        perror(CUR_PATH);
+        goto end;
+    }
+
+    fprintf(f, "%d", src->raw);
+    retval = 0;
+
+end:
+    if (f != NULL)
+        fclose(f);
+    return retval;
+}
+
+void adjust(struct brightness *b, int value)
+{
+    b->percents += value;
+    if (b->percents > 100)
+        b->percents = 100;
+    else if (b->percents < 0)
+        b->percents = 0;
+    b->raw = (int)ceil((double)b->percents*b->max_raw/100);
+}
+
+
+void dump(struct brightness *b)
+{
+    printf("%d (%d%%)\n", b->raw, b->percents);
+}
+
+
+int main(int argc, char** argv)
+{
+    int retval = 0;
+    struct brightness b;
+    int adjust_val = STEP;
+    bool decr = false;
+
+    if (argc > 1 && strcmp(argv[1], "-h") == 0) {
+        printf("usage: %s [-h] [+/-]\n", argv[0]);
+        goto end;
+    }
+
+    if (get(&b))
+        goto end;
+
+    if (argc <= 1) {
+        dump(&b);
+        goto end;
+    }
+
+    if (strcmp(argv[1], "-") == 0)
+        decr = true;
+    else if (strcmp(argv[1], "+") != 0) {
+        fprintf(stderr, "%s: unknown argument\n", argv[1]);
+        retval = 1;
+        goto end;
+    }
+
+    if (decr)
+        adjust_val *= -1;
+
+    adjust(&b, adjust_val);
+    if (set(&b)) {
+        retval = 1;
+        goto end;
+    }
+
+    dump(&b);
+
+end:
+    return retval;
+}
diff --git a/main.c b/main.c
deleted file mode 100644
index 70f6822..0000000
--- a/main.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/* SPDX-License-Identifier: BSD-2-Clause */
-
-#include <stdio.h>
-#include <math.h>
-#include <string.h>
-#include <stdbool.h>
-
-#define CUR_PATH "/sys/class/backlight/intel_backlight/brightness"
-#define MAX_PATH "/sys/class/backlight/intel_backlight/max_brightness"
-#define STEP     10
-
-struct brightness {
-    int max_raw;
-    int raw;
-    int percents;
-};
-
-
-
-int readval(const char *path, int *dst)
-{
-    FILE *f = fopen(path, "r");
-    int retval = 1;
-
-    if (f == NULL) {
-        perror(path);
-        goto end;
-    }
-
-    int raw;
-    if (fscanf(f, "%d", &raw) != 1) {
-        perror(path);
-        goto end;
-    }
-
-    *dst = raw;
-    retval = 0;
-
-end:
-    if (f != NULL)
-        fclose(f);
-    return retval;
-}
-
-
-int get(struct brightness *dst)
-{
-    int retval = 1;
-    if (readval(CUR_PATH, &dst->raw))
-        goto end;
-    if (readval(MAX_PATH, &dst->max_raw))
-        goto end;
-
-    dst->percents = (int)round((double)dst->raw*100/dst->max_raw);
-    retval = 0;
-
-end:
-    return retval;
-}
-
-int set(struct brightness *src)
-{
-    int retval = 1;
-    FILE *f = fopen(CUR_PATH, "w");
-    if (!f) {
-        perror(CUR_PATH);
-        goto end;
-    }
-
-    fprintf(f, "%d", src->raw);
-    retval = 0;
-
-end:
-    if (f != NULL)
-        fclose(f);
-    return retval;
-}
-
-void adjust(struct brightness *b, int value)
-{
-    b->percents += value;
-    if (b->percents > 100)
-        b->percents = 100;
-    else if (b->percents < 0)
-        b->percents = 0;
-    b->raw = (int)ceil((double)b->percents*b->max_raw/100);
-}
-
-
-void dump(struct brightness *b)
-{
-    printf("%d (%d%%)\n", b->raw, b->percents);
-}
-
-
-int main(int argc, char** argv)
-{
-    int retval = 0;
-    struct brightness b;
-    int adjust_val = STEP;
-    bool decr = false;
-
-    if (argc > 1 && strcmp(argv[1], "-h") == 0) {
-        printf("usage: %s [-h] [+/-]\n", argv[0]);
-        goto end;
-    }
-
-    if (get(&b))
-        goto end;
-
-    if (argc <= 1) {
-        dump(&b);
-        goto end;
-    }
-
-    if (strcmp(argv[1], "-") == 0)
-        decr = true;
-    else if (strcmp(argv[1], "+") != 0) {
-        fprintf(stderr, "%s: unknown argument\n", argv[1]);
-        retval = 1;
-        goto end;
-    }
-
-    if (decr)
-        adjust_val *= -1;
-
-    adjust(&b, adjust_val);
-    if (set(&b)) {
-        retval = 1;
-        goto end;
-    }
-
-    dump(&b);
-
-end:
-    return retval;
-}
-- 
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