# grep -i "hotplug\|proc\|sysfs" .config
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_IKCONFIG_PROC=y
CONFIG_SYSFS_DEPRECATED=y
CONFIG_HOTPLUG=y
# Processor type and features
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
# CONFIG_PM_SYSFS_DEPRECATED is not set
CONFIG_ACPI_SLEEP_PROC_FS=y
# CONFIG_ACPI_SLEEP_PROC_SLEEP is not set
CONFIG_ACPI_PROCESSOR=y
# CPUFreq processor drivers
# CONFIG_X86_ACPI_CPUFREQ_PROC_INTF is not set
# PCI Hotplug Support
# CONFIG_HOTPLUG_PCI is not set
# CONFIG_SCSI_PROC_FS is not set
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_REISERFS_PROC_INFO is not set
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_SYSFS=y