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 | |
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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