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CONFIG_ETRAX_DS1302: DS1302

General informations

The Linux kernel configuration item CONFIG_ETRAX_DS1302 has multiple definitions:

DS1302 found in arch/cris/Kconfig

The configuration item CONFIG_ETRAX_DS1302:

Help text

Enables the driver for the DS1302 Real-Time Clock battery-backed chip on some products.

DS1302 found in arch/cris/arch-v10/drivers/Kconfig

The configuration item CONFIG_ETRAX_DS1302:

Help text

Enables the driver for the DS1302 Real-Time Clock battery-backed chip on some products.

DS1302 Real Time Clock support found in arch/cris/drivers/Kconfig

The configuration item CONFIG_ETRAX_DS1302:

Help text

Enables the driver for the DS1302 Real-Time Clock battery-backed chip on some products. The kernel reads the time when booting, and the date can be set using ioctl(fd, RTC_SET_TIME, &rt) with rt a rtc_time struct (see include/asm-cris/rtc.h) on the /dev/rtc device, major 121. You can check the time with cat /proc/rtc, but normal time reading should be done using libc function time and friends.

Hardware

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