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E.3.4. /proc/driver/
This directory contains information for specific drivers in use by the kernel.
A common file found here is
rtc which provides output from the driver for the system's Real Time Clock (RTC), the device that keeps the time while the system is switched off. Sample output from /proc/driver/rtc looks like the following:
rtc_time : 16:21:00 rtc_date : 2004-08-31 rtc_epoch : 1900 alarm : 21:16:27 DST_enable : no BCD : yes 24hr : yes square_wave : no alarm_IRQ : no update_IRQ : no periodic_IRQ : no periodic_freq : 1024 batt_status : okay
For more information about the RTC, see the following installed documentation:
/usr/share/doc/kernel-doc-<kernel_version>/Documentation/rtc.txt.

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