Messages in this thread | | | Date | Sun, 30 Mar 2008 15:43:35 +0400 | From | Evgeniy Polyakov <> | Subject | Re: [PATCH 34/35] W1: Documentation/w1/masters/ds2490 update |
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On Fri, Mar 28, 2008 at 07:27:59AM -0500, David Fries (david@fries.net) wrote: > Provide some additional details about the status of the driver. > > Signed-off-by: David Fries <david@fries.net> > --- > Documentation/w1/masters/ds2490 | 60 +++++++++++++++++++++++++++++++++++++++ > 1 files changed, 60 insertions(+), 0 deletions(-) > > diff --git a/Documentation/w1/masters/ds2490 b/Documentation/w1/masters/ds2490 > index 239f9ae..4b7b8ee 100644 > --- a/Documentation/w1/masters/ds2490 > +++ b/Documentation/w1/masters/ds2490 > @@ -16,3 +16,63 @@ which allows to build USB <-> W1 bridges. > DS9490(R) is a USB <-> W1 bus master device > which has 0x81 family ID integrated chip and DS2490 > low-level operational chip. > + > +Notes and limitations. > +- The 5V strong pullup is supported. > +- While the ds2490 supports a hardware search the code doesn't take > + advantage of it.
It does not actually - at least my hardware can only find first device on the bus, so I dropped the implementation.
I generally ack whe whole ds2490 changes except pullup one - it has to be turned off by default, presumably tested with multiple devices on the same wire.
David, thanks a lot for your work on w1 drivers.
-- Evgeniy Polyakov
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