From 9de0de4d3d32ab97226fa9868de1fa2290120429 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Tue, 26 Jul 2022 16:01:13 +0200 Subject: Do not relay on libevdev for button/axis names, an prepare for device specific names, and add reverse lookup functions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- libgamepad_get_relative_axis_by_name.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 libgamepad_get_relative_axis_by_name.c (limited to 'libgamepad_get_relative_axis_by_name.c') diff --git a/libgamepad_get_relative_axis_by_name.c b/libgamepad_get_relative_axis_by_name.c new file mode 100644 index 0000000..f7f2a72 --- /dev/null +++ b/libgamepad_get_relative_axis_by_name.c @@ -0,0 +1,29 @@ +/* See LICENSE file for copyright and license details. */ +#include "common.h" + + +int16_t +libgamepad_get_relative_axis_by_name(const char *name) +{ + size_t code; + int saved_errno; + char *end; + if (!name || !*name) + return -1; + if (isdigit(*name)) { + saved_errno = errno; + errno = 0; + code = (size_t)strtoul(name, &end, 0); + if (errno || *end || code > (size_t)REL_MAX) { + errno = saved_errno; + return -1; + } + errno = saved_errno; + return (int16_t)code; + } else { + for (code = 0; code < ELEMSOF(libgamepad_relative_axis_names__); code++) + if (!strcasecmp(name, libgamepad_relative_axis_names__[code])) + return (int16_t)code; + return -1; + } +} -- cgit v1.2.3-70-g09d2