### DSCLOCK.SYS Usage Information

[DSCLOCK.SYS](software) is an MS-DOS / PC DOS clock driver for DS12885 and DS12887 based real time clock controllers.

Add the following line to the CONFIG.SYS to use this driver:

```
DEVICE=[PATH]DSCLOCK.SYS [PORT] [/D]
```
Where:
* PATH - Drive and path to the driver, e.g., C:\DRIVERS\
* PORT - Decimal or hexadecimal port number. Use C notation (0x) for hexadecimal numbers, e.g., 0x240
* /D - DST enable flag. If enabled, the RTC controller will automatically adjust the clock for daylight saving time. Note that DS12885/DS12887 support North American DST switch rules, so it is not very useful for the rest of the world

Usage example:
```
DEVICE=C:\DRIVERS\DSCLOCK.SYS 0x240
```
