Hi! > The twl4030 phy can measure, with low precision, the > resistance-to-ground of the ID pin. > > Add a function to read the value, and export the result > via sysfs. > > If the read fails, which it does sometimes, try again in 50msec. > > Signed-off-by: NeilBrown <[email protected]> > --- > drivers/phy/phy-twl4030-usb.c | 63 > +++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 63 insertions(+) > > diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c > index 023fe150c7a1..759950898df9 100644 > --- a/drivers/phy/phy-twl4030-usb.c > +++ b/drivers/phy/phy-twl4030-usb.c > @@ -374,6 +374,56 @@ static void twl4030_i2c_access(struct twl4030_usb *twl, > int on) > } > } > > +enum twl4030_id_status { > + TWL4030_GROUND, > + TWL4030_102K, > + TWL4030_200K, > + TWL4030_440K, > + TWL4030_FLOATING, > + TWL4030_ID_UNKNOWN, > +}; > +static char *twl4030_id_names[] = { > + "ground", > + "102k", > + "200k", > + "440k",
New /sys files should be documented somewhere...? Does it make sense to change "440k" -> "440KOhm"? Plus I guess you need to update Documentation/ Acked-by: Pavel Machek <[email protected]> -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
