/* * uledmon.c * * This program creates a new userspace LED class device and monitors it. A * timestamp and brightness value is printed each time the brightness changes. * * Usage: uledmon * * is the name of the LED class device to be created. Pressing * CTRL+C will exit. */ #include #include #include #include #include #include int main(int argc, char const *argv[]) { struct uleds_user_dev uleds_dev; int fd, ret; int brightness; struct timespec ts; if (argc != 2) { fprintf(stderr, "Requires argument\n"); return 1; } strncpy(uleds_dev.name, argv[1], LED_MAX_NAME_SIZE); uleds_dev.max_brightness = 100; fd = open("/dev/uleds", O_RDWR); if (fd == -1) { perror("Failed to open /dev/uleds"); return 1; } ret = write(fd, &uleds_dev, sizeof(uleds_dev)); if (ret == -1) { perror("Failed to write to /dev/uleds"); close(fd); return 1; } while (1) { ret = read(fd, &brightness, sizeof(brightness)); if (ret == -1) { perror("Failed to read from /dev/uleds"); close(fd); return 1; } clock_gettime(CLOCK_MONOTONIC, &ts); printf("[%ld.%09ld] %u\n", ts.tv_sec, ts.tv_nsec, brightness); } close(fd); return 0; } pump-back net-next plumbingsTobias Klauser

summary refs log tree commit diff

diff options

author	Claudiu Manoil <claudiu.manoil@nxp.com>	2016-09-22 18:04:12 +0300
committer	Scott Wood <oss@buserror.net>	2016-09-25 02:39:01 -0500
commit	e0b80f00bb96b925995d53980e0c764430bedb42 (patch)
tree	dfe09d08077dbe7280783ffa1863d412b0ca9f53
parent	de7756233994b48cfc4d948904380cd0453a0063 (diff)

arch/powerpc: Add CONFIG_FSL_DPAA to corenetXX_smp_defconfig

Enable the drivers on the powerpc arch. Signed-off-by: Roy Pledge <roy.pledge@nxp.com> Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net>