Evgeniy Polyakov wrote: >On Mon, 31 Jan 2005 17:11:06 +0100 (CET) >"Jean Delvare" <khali at linux-fr.org> wrote: > > > >>Hi Frank, >> >> >> >>>I am now looking at the one-wire drivers and see some issues coming up >>>already. Our one-wire devices (DS2401s and DS18B20s) are connected >>>through a CPLD at ISA port 0x304. I am looking at the matrox driver >>>since it has a port to access through. Under the linux documentation >>>(Linux 2.6.9) I can't find anything on one-wire devices. Is there some >>>docs somewhere that discusses how to use these w1 modules. I believe I >>>need w1 and w1_therm to start with but I don't see how everything needs >>>to tie together. >>> >>> >>I as said, Evgeniy Polyakov (CC'd) is the right person for that kind of >>questions. My personal knowledge about one-wire is void. >> >> > >Hello, Frank, Jean. > >ds2401 and ds18*20 are supported by w1_smem and w1_therm drivers. >So you need to create so called w1 bus master device - it is a driver >that drives the actual physicall bus and reports to the w1 core >about this process. Actually it is w1 core that drives the bus using >callbaks provided by w1 bus master driver. > >Since you use ISA port based access then the easiest way is to implement >only bit operations and register bus master with the w1 core. > >You can use matrox_w1 driver and recently included sc_w1 driver(w1 over SuperIO GPIO) >driver as examples. > >Documenting all created cruft has a very high priority for me, bits of >generic information about w1 already exist in Documentation/w1. > >I wish you success in this implementation. > > > Ok, now I feel stupid or blind but I can't find a directory under Documentation called w1 and a "find" does not find sc_w1.c or sw_gpio.c. I currently have kernel 2.6.9 but also looked at the standard 2.6.10 download. Is the superio and documentation in an individuals patch set or am I missing something. Thanks again.
