Hi Jean, This is what I have discovered so far, the icspll documentation and source show that the chip has to live at 0x69. The max6900 has a slave address of 0xa0. The chip looks alot like the ds1307 (minus the irq and frequency functions). I have not worked with the lm_sensors and i2c packages very long, so forgive me if I ask stupid questions. Assuming a linux kernel of version 2.4.24, I was going to use the drivers/acorn/pcf8583.c as a template, this chip has a slave address of 0x68 and the other functions that max6900 does not support. I was also going to use the acorn/i2c.c file as a guide to create my adapter and connect to the /dev/rtc device. Basically I think I need a new device id, but because of where I am at in learning this stuff it may not be necessary. Jean thanks for your time, I appreciate it very much. Anthony. -----Original Message----- From: Jean Delvare [mailto:khali at linux-fr.org] Sent: Tuesday, March 02, 2004 2:19 PM To: Anthony Petillo Cc: sensors at Stimpy.netroedge.com Subject: Re: I am developing a driver for MAX6900 (RTC chip) > Hi, my name is Anthony Petillo and I am currently working on a driver > for Maxim's MAX6900. It is an I2C bus compatible real-time clock and > contains 31 bytes of battery backed ram. > > I was wondering if I could get a device id to add to i2c-id.h. Hi Anthony, We have a driver for clock chips named icspll. Please take a look and confirm that your MAX6900 wouldn't fit in it. If not, I'll give you an ID. Thanks. -- Jean Delvare http://www.ensicaen.ismra.fr/~delvare/
