From 1886117c721c4d66a61f58bbfe5367e6fc527367 Mon Sep 17 00:00:00 2001 From: smattie Date: Sat, 7 Sep 2019 15:21:04 +0100 Subject: [PATCH] Linux: fixes sysfs battery discovery --- linux/Battery.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/linux/Battery.c b/linux/Battery.c index aedacabc8..029eff59e 100644 --- a/linux/Battery.c +++ b/linux/Battery.c @@ -193,7 +193,18 @@ static void Battery_getSysData(double* level, ACPresence* isOnAC) { char* entryName = (char *) dirEntry->d_name; const char filePath[50]; - if (entryName[0] == 'B' && entryName[1] == 'A' && entryName[2] == 'T') { + xSnprintf((char *) filePath, sizeof filePath, SYS_POWERSUPPLY_DIR "/%s/type", entryName); + int fd = open(filePath, O_RDONLY); + if (fd == -1) + continue; + + char type[8]; + ssize_t typelen = xread(fd, type, 7); + close(fd); + if (typelen < 1) + continue; + + if (type[0] == 'B' && type[1] == 'a' && type[2] == 't') { xSnprintf((char *) filePath, sizeof filePath, SYS_POWERSUPPLY_DIR "/%s/uevent", entryName); int fd = open(filePath, O_RDONLY);