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From 3b4e03492fd157ab87ea625a8ad1eb91cef7396b Mon Sep 17 00:00:00 2001
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From: Peter Hutterer <peter.hutterer@who-t.net>
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Date: Fri, 20 Mar 2015 13:17:20 +1000
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Subject: [PATCH] udev: builtin-keyboard: move actual key mapping to a helper
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function
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No changes in the mapping, but previously we opened the device only on
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successful parsing. Now we open the mapping as soon as we have a value that
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looks interesting. Since errors are supposed to be the exception, not the
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rule, this is probably fine.
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(cherry picked from commit c9a8e34094733018727677fee44be2c2952224c0)
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Resolves: #1500119
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---
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src/udev/udev-builtin-keyboard.c | 58 +++++++++++++++++++++++-----------------
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1 file changed, 33 insertions(+), 25 deletions(-)
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diff --git a/src/udev/udev-builtin-keyboard.c b/src/udev/udev-builtin-keyboard.c
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index 515edd45c..f33401790 100644
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--- a/src/udev/udev-builtin-keyboard.c
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+++ b/src/udev/udev-builtin-keyboard.c
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@@ -66,12 +66,41 @@ static int install_force_release(struct udev_device *dev, const unsigned *releas
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return ret;
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}
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-static int builtin_keyboard(struct udev_device *dev, int argc, char *argv[], bool test) {
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- struct udev_list_entry *entry;
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+static void map_keycode(int fd, const char *devnode, int scancode, const char *keycode)
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+{
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struct {
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unsigned scan;
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unsigned key;
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} map;
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+ char *endptr;
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+ const struct key *k;
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+ unsigned keycode_num;
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+
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+ /* translate identifier to key code */
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+ k = keyboard_lookup_key(keycode, strlen(keycode));
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+ if (k) {
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+ keycode_num = k->id;
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+ } else {
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+ /* check if it's a numeric code already */
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+ keycode_num = strtoul(keycode, &endptr, 0);
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+ if (endptr[0] !='\0') {
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+ log_error("Error, unknown key identifier '%s'", keycode);
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+ return;
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+ }
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+ }
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+
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+ map.scan = scancode;
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+ map.key = keycode_num;
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+
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+ log_debug("keyboard: mapping scan code %d (0x%x) to key code %d (0x%x)",
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+ map.scan, map.scan, map.key, map.key);
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+
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+ if (ioctl(fd, EVIOCSKEYCODE, &map) < 0)
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+ log_error_errno(errno, "Error calling EVIOCSKEYCODE on device node '%s' (scan code 0x%x, key code %d): %m", devnode, map.scan, map.key);
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+}
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+
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+static int builtin_keyboard(struct udev_device *dev, int argc, char *argv[], bool test) {
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+ struct udev_list_entry *entry;
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unsigned release[1024];
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unsigned release_count = 0;
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_cleanup_close_ int fd = -1;
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@@ -85,10 +114,9 @@ static int builtin_keyboard(struct udev_device *dev, int argc, char *argv[], boo
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udev_list_entry_foreach(entry, udev_device_get_properties_list_entry(dev)) {
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const char *key;
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- unsigned scancode, keycode_num;
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char *endptr;
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+ unsigned scancode;
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const char *keycode;
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- const struct key *k;
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key = udev_list_entry_get_name(entry);
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if (!startswith(key, "KEYBOARD_KEY_"))
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@@ -115,19 +143,6 @@ static int builtin_keyboard(struct udev_device *dev, int argc, char *argv[], boo
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continue;
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}
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- /* translate identifier to key code */
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- k = keyboard_lookup_key(keycode, strlen(keycode));
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- if (k) {
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- keycode_num = k->id;
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- } else {
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- /* check if it's a numeric code already */
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- keycode_num = strtoul(keycode, &endptr, 0);
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- if (endptr[0] !='\0') {
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- log_error("Error, unknown key identifier '%s'", keycode);
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- continue;
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- }
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- }
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-
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if (fd == -1) {
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fd = open(node, O_RDWR|O_CLOEXEC|O_NONBLOCK|O_NOCTTY);
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if (fd < 0) {
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@@ -136,14 +151,7 @@ static int builtin_keyboard(struct udev_device *dev, int argc, char *argv[], boo
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}
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}
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- map.scan = scancode;
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- map.key = keycode_num;
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-
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- log_debug("keyboard: mapping scan code %d (0x%x) to key code %d (0x%x)",
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- map.scan, map.scan, map.key, map.key);
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-
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- if (ioctl(fd, EVIOCSKEYCODE, &map) < 0)
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- log_error_errno(errno, "Error calling EVIOCSKEYCODE on device node '%s' (scan code 0x%x, key code %d): %m", node, map.scan, map.key);
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+ map_keycode(fd, node, scancode, keycode);
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}
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/* install list of force-release codes */
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