10c86edc0SAlessandro Zummo\# 2c58411e9SAlessandro Zummo# RTC class/drivers configuration 3c58411e9SAlessandro Zummo# 4c58411e9SAlessandro Zummo 50c86edc0SAlessandro Zummomenu "Real Time Clock" 60c86edc0SAlessandro Zummo 7c58411e9SAlessandro Zummoconfig RTC_LIB 8c58411e9SAlessandro Zummo tristate 90c86edc0SAlessandro Zummo 100c86edc0SAlessandro Zummoconfig RTC_CLASS 110c86edc0SAlessandro Zummo tristate "RTC class" 120c86edc0SAlessandro Zummo depends on EXPERIMENTAL 130c86edc0SAlessandro Zummo default n 140c86edc0SAlessandro Zummo select RTC_LIB 150c86edc0SAlessandro Zummo help 160c86edc0SAlessandro Zummo Generic RTC class support. If you say yes here, you will 170c86edc0SAlessandro Zummo be allowed to plug one or more RTCs to your system. You will 180c86edc0SAlessandro Zummo probably want to enable one of more of the interfaces below. 190c86edc0SAlessandro Zummo 200c86edc0SAlessandro Zummo This driver can also be built as a module. If so, the module 210c86edc0SAlessandro Zummo will be called rtc-class. 220c86edc0SAlessandro Zummo 230c86edc0SAlessandro Zummoconfig RTC_HCTOSYS 240c86edc0SAlessandro Zummo bool "Set system time from RTC on startup" 250c86edc0SAlessandro Zummo depends on RTC_CLASS = y 260c86edc0SAlessandro Zummo default y 270c86edc0SAlessandro Zummo help 280c86edc0SAlessandro Zummo If you say yes here, the system time will be set using 290c86edc0SAlessandro Zummo the value read from the specified RTC device. This is useful 300c86edc0SAlessandro Zummo in order to avoid unnecessary fschk runs. 310c86edc0SAlessandro Zummo 320c86edc0SAlessandro Zummoconfig RTC_HCTOSYS_DEVICE 330c86edc0SAlessandro Zummo string "The RTC to read the time from" 340c86edc0SAlessandro Zummo depends on RTC_HCTOSYS = y 350c86edc0SAlessandro Zummo default "rtc0" 360c86edc0SAlessandro Zummo help 370c86edc0SAlessandro Zummo The RTC device that will be used as the source for 380c86edc0SAlessandro Zummo the system time, usually rtc0. 390c86edc0SAlessandro Zummo 400c86edc0SAlessandro Zummocomment "RTC interfaces" 410c86edc0SAlessandro Zummo depends on RTC_CLASS 420c86edc0SAlessandro Zummo 43c5c3e192SAlessandro Zummoconfig RTC_INTF_SYSFS 44c5c3e192SAlessandro Zummo tristate "sysfs" 45c5c3e192SAlessandro Zummo depends on RTC_CLASS && SYSFS 46c5c3e192SAlessandro Zummo default RTC_CLASS 47c5c3e192SAlessandro Zummo help 48c5c3e192SAlessandro Zummo Say yes here if you want to use your RTC using the sysfs 49c5c3e192SAlessandro Zummo interface, /sys/class/rtc/rtcX . 50c5c3e192SAlessandro Zummo 51c5c3e192SAlessandro Zummo This driver can also be built as a module. If so, the module 52c5c3e192SAlessandro Zummo will be called rtc-sysfs. 53c5c3e192SAlessandro Zummo 54728a2947SAlessandro Zummoconfig RTC_INTF_PROC 55728a2947SAlessandro Zummo tristate "proc" 56728a2947SAlessandro Zummo depends on RTC_CLASS && PROC_FS 57728a2947SAlessandro Zummo default RTC_CLASS 58728a2947SAlessandro Zummo help 59728a2947SAlessandro Zummo Say yes here if you want to use your RTC using the proc 60728a2947SAlessandro Zummo interface, /proc/driver/rtc . 61728a2947SAlessandro Zummo 62728a2947SAlessandro Zummo This driver can also be built as a module. If so, the module 63728a2947SAlessandro Zummo will be called rtc-proc. 64728a2947SAlessandro Zummo 65e824290eSAlessandro Zummoconfig RTC_INTF_DEV 66e824290eSAlessandro Zummo tristate "dev" 67e824290eSAlessandro Zummo depends on RTC_CLASS 68e824290eSAlessandro Zummo default RTC_CLASS 69e824290eSAlessandro Zummo help 70e824290eSAlessandro Zummo Say yes here if you want to use your RTC using the dev 71e824290eSAlessandro Zummo interface, /dev/rtc . 72e824290eSAlessandro Zummo 73e824290eSAlessandro Zummo This driver can also be built as a module. If so, the module 74e824290eSAlessandro Zummo will be called rtc-dev. 75e824290eSAlessandro Zummo 760c86edc0SAlessandro Zummocomment "RTC drivers" 770c86edc0SAlessandro Zummo depends on RTC_CLASS 780c86edc0SAlessandro Zummo 791fec7c66SAlessandro Zummoconfig RTC_DRV_X1205 801fec7c66SAlessandro Zummo tristate "Xicor/Intersil X1205" 811fec7c66SAlessandro Zummo depends on RTC_CLASS && I2C 821fec7c66SAlessandro Zummo help 831fec7c66SAlessandro Zummo If you say yes here you get support for the 841fec7c66SAlessandro Zummo Xicor/Intersil X1205 RTC chip. 851fec7c66SAlessandro Zummo 861fec7c66SAlessandro Zummo This driver can also be built as a module. If so, the module 871fec7c66SAlessandro Zummo will be called rtc-x1205. 881fec7c66SAlessandro Zummo 89*edf1aaa3SAlessandro Zummoconfig RTC_DRV_DS1672 90*edf1aaa3SAlessandro Zummo tristate "Dallas/Maxim DS1672" 91*edf1aaa3SAlessandro Zummo depends on RTC_CLASS && I2C 92*edf1aaa3SAlessandro Zummo help 93*edf1aaa3SAlessandro Zummo If you say yes here you get support for the 94*edf1aaa3SAlessandro Zummo Dallas/Maxim DS1672 timekeeping chip. 95*edf1aaa3SAlessandro Zummo 96*edf1aaa3SAlessandro Zummo This driver can also be built as a module. If so, the module 97*edf1aaa3SAlessandro Zummo will be called rtc-ds1672. 98*edf1aaa3SAlessandro Zummo 99a95579cdSAlessandro Zummoconfig RTC_DRV_TEST 100a95579cdSAlessandro Zummo tristate "Test driver/device" 101a95579cdSAlessandro Zummo depends on RTC_CLASS 102a95579cdSAlessandro Zummo help 103a95579cdSAlessandro Zummo If you say yes here you get support for the 104a95579cdSAlessandro Zummo RTC test driver. It's a software RTC which can be 105a95579cdSAlessandro Zummo used to test the RTC subsystem APIs. It gets 106a95579cdSAlessandro Zummo the time from the system clock. 107a95579cdSAlessandro Zummo You want this driver only if you are doing development 108a95579cdSAlessandro Zummo on the RTC subsystem. Please read the source code 109a95579cdSAlessandro Zummo for further details. 110a95579cdSAlessandro Zummo 111a95579cdSAlessandro Zummo This driver can also be built as a module. If so, the module 112a95579cdSAlessandro Zummo will be called rtc-test. 113a95579cdSAlessandro Zummo 1140c86edc0SAlessandro Zummoendmenu 115