Possible clarification in man pages for i2cget, i2cset (i2c-tools package)

Possible clarification in man pages for i2cget, i2cset (i2c-tools package)

[rpjday-L09J2beyid0N/H6P543EQg]

   Not sure if this represents a trivial error appropriate for this  
list, but in
the current man page for "i2cget" (and "i2cset" as well), the valid values for
an I2C device address are given as 0x03->0x77.

   Actually, I2C device addresses of the form 0x00001XX (0x04->0x07)  
are reserved
to identify high-speed master code:

   https://www.i2c-bus.org/highspeed/

so *regular* I2C device addresses fall in the range 0x08->0x77. I  
don't know if
it's worth clarifying that pedantic detail.

rday

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Re: Possible clarification in man pages for i2cget, i2cset (i2c-tools package)

[Michael Kerrisk (man-pages)]

Hello Robert,

On 21 July 2017 at 14:31,  <rpjday-L09J2beyid0N/H6P543EQg@public.gmane.org> wrote:
>
>   Not sure if this represents a trivial error appropriate for this list, but
> in
> the current man page for "i2cget" (and "i2cset" as well), the valid values
> for
> an I2C device address are given as 0x03->0x77.
>
>   Actually, I2C device addresses of the form 0x00001XX (0x04->0x07) are
> reserved
> to identify high-speed master code:
>
>   https://www.i2c-bus.org/highspeed/
>
> so *regular* I2C device addresses fall in the range 0x08->0x77. I don't know
> if
> it's worth clarifying that pedantic detail.

You'll need to contact the maintainer of the package that provides
those man pages. I have nothing to do with them ;-).

Cheers,

Michael



-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/
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Re: Possible clarification in man pages for i2cget, i2cset (i2c-tools package)

[Robert P. J. Day]

On Fri, 21 Jul 2017, Michael Kerrisk (man-pages) wrote:

> Hello Robert,
>
> On 21 July 2017 at 14:31,  <rpjday-L09J2beyid0N/H6P543EQg@public.gmane.org> wrote:
> >
> >   Not sure if this represents a trivial error appropriate for this list, but
> > in
> > the current man page for "i2cget" (and "i2cset" as well), the valid values
> > for
> > an I2C device address are given as 0x03->0x77.
> >
> >   Actually, I2C device addresses of the form 0x00001XX (0x04->0x07) are
> > reserved
> > to identify high-speed master code:
> >
> >   https://www.i2c-bus.org/highspeed/
> >
> > so *regular* I2C device addresses fall in the range 0x08->0x77. I don't know
> > if
> > it's worth clarifying that pedantic detail.
>
> You'll need to contact the maintainer of the package that provides
> those man pages. I have nothing to do with them ;-).

  got it, sorry for the noise.

rday
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