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- Kernel driver x1205
- ===================
- Supported chips:
- * Xicor X1205 RTC
- Prefix: 'x1205'
- Addresses scanned: none
- Datasheet: http://www.intersil.com/cda/deviceinfo/0,1477,X1205,00.html
- Authors:
- Karen Spearel <kas11@tampabay.rr.com>,
- Alessandro Zummo <a.zummo@towertech.it>
- Description
- -----------
- This module aims to provide complete access to the Xicor X1205 RTC.
- Recently Xicor has merged with Intersil, but the chip is
- still sold under the Xicor brand.
- This chip is located at address 0x6f and uses a 2-byte register addressing.
- Two bytes need to be written to read a single register, while most
- other chips just require one and take the second one as the data
- to be written. To prevent corrupting unknown chips, the user must
- explicitely set the probe parameter.
- example:
- modprobe x1205 probe=0,0x6f
- The module supports one more option, hctosys, which is used to set the
- software clock from the x1205. On systems where the x1205 is the
- only hardware rtc, this parameter could be used to achieve a correct
- date/time earlier in the system boot sequence.
- example:
- modprobe x1205 probe=0,0x6f hctosys=1
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