I am also trying to find a driver for AD7414 (temperature sensor with 5 registers). I have looked at the DS75, LM75, ADM1021A datasheets and they are all different enough that it looks as though I need to write a driver for the AD7414 as well. There are so many drivers, does anyone know if there is one that I can use for the AD7414 instead of writing one? Thank-you, Anthony -----Original Message----- From: Mark Studebaker [mailto:mds4 at verizon.net] Sent: Thursday, March 04, 2004 9:11 PM To: Anthony Petillo Cc: sensors at Stimpy.netroedge.com Subject: Re: I am developing a driver for MAX6900 (RTC chip) Anthony is correct, a real time clock is quite different from the type of clock driver chip supported by icspll, and a new device ID is appropriate. mds Anthony Petillo wrote: > 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. >
