Function cpufreq_levels_sysctl

freebsd/kern/kern_cpu.c:990–1029

}

static int
cpufreq_levels_sysctl(SYSCTL_HANDLER_ARGS)
{
	struct cpufreq_softc *sc;
	struct cf_level *levels;
	struct cf_setting *set;
	struct sbuf sb;
	int count, error, i;

	sc = oidp->oid_arg1;
	sbuf_new(&sb, NULL, 128, SBUF_AUTOEXTEND);

	/* Get settings from the device and generate the output string. */
	count = CF_MAX_LEVELS;
	levels = sc->levels_buf;
	if (levels == NULL) {
		sbuf_delete(&sb);
		return (ENOMEM);
	}
	error = CPUFREQ_LEVELS(sc->dev, levels, &count);
	if (error) {
		if (error == E2BIG)
			printf("cpufreq: need to increase CF_MAX_LEVELS\n");
		goto out;
	}
	if (count) {
		for (i = 0; i < count; i++) {
			set = &levels[i].total_set;
			sbuf_printf(&sb, "%d/%d ", set->freq, set->power);
		}
	} else
		sbuf_cpy(&sb, "0");
	sbuf_trim(&sb);
	sbuf_finish(&sb);
	error = sysctl_handle_string(oidp, sbuf_data(&sb), sbuf_len(&sb), req);

out:
	sbuf_delete(&sb);
	return (error);
}

static int
cpufreq_settings_sysctl(SYSCTL_HANDLER_ARGS)