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authorEvgeniy Polyakov <zbr@ioremap.net>2009-01-07 18:09:03 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-08 08:31:13 -0800
commitc7e26631d27b61d66ea6fb9b113fb92f1fa20d90 (patch)
tree6f8099b1481af05c0a34d943bba71f4f2a647c3a /firmware
parente4e056aa3518197830c884b85268799b1868e8e3 (diff)
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w1: allow master IO commands
This small patchset extendes existing commands with reset, master IO and status messages. Reset is used to reset the bus for given master device, master IO command allows to initiate IO against bus itself not selecting slave device first, which can be used to probe the device for example. And status messages carry command completion status back to the userspace (namely very useful to get -ENODEV from when requested device was not found). Great thanks to Paul Alfille of OWFS for testing and commands suggestions. This patch: Allow starting of IO not against already found slave devices, but against the bus itself, which can be used for example to probe devices. [akpm@linux-foundation.org: reindent switch statements] Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: Paul Alfille <paul.alfille@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'firmware')
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