[lkml]   [2008]   [Jul]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    Patch in this message
    Subject[PATCH 10/30] W1: Document add, remove, search_count, and pullup.
    Document w1_master_add, w1_master_remove, search_count, and pullup.

    Signed-off-by: David Fries <>
    Signed-off-by: Evgeniy Polyakov <>
    Documentation/w1/w1.generic | 11 ++++++++++-
    1 files changed, 10 insertions(+), 1 deletions(-)

    diff --git a/Documentation/w1/w1.generic b/Documentation/w1/w1.generic
    index 4c6509d..e3333ee 100644
    --- a/Documentation/w1/w1.generic
    +++ b/Documentation/w1/w1.generic
    @@ -79,10 +79,13 @@ w1 master sysfs interface
    <xx-xxxxxxxxxxxxx> - a directory for a found device. The format is family-serial
    bus - (standard) symlink to the w1 bus
    driver - (standard) symlink to the w1 driver
    +w1_master_add - Manually register a slave device
    w1_master_attempts - the number of times a search was attempted
    - the maximum slaves that may be attached to a master
    w1_master_name - the name of the device (w1_bus_masterX)
    +w1_master_pullup - 5V strong pullup 0 enabled, 1 disabled
    +w1_master_remove - Manually remove a slave device
    w1_master_search - the number of searches left to do, -1=continual (default)
    - the number of slaves found
    @@ -90,7 +93,13 @@ w1_master_slaves - the names of the slaves, one per line
    w1_master_timeout - the delay in seconds between searches

    If you have a w1 bus that never changes (you don't add or remove devices),
    -you can set w1_master_search to a positive value to disable searches.
    +you can set the module parameter search_count to a small positive number
    +for an initially small number of bus searches. Alternatively it could be
    +set to zero, then manually add the slave device serial numbers by
    +w1_master_add device file. The w1_master_add and w1_master_remove files
    +generally only make sense when searching is disabled, as a search will
    +redetect manually removed devices that are present and timeout manually
    +added devices that aren't on the bus.

    w1 slave sysfs interface

     \ /
      Last update: 2008-07-31 04:59    [W:0.021 / U:19.260 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site