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| author |   Jean Delvare <khali@linux-fr.org> | 2012-05-30 10:55:34 +0200 |
|---|---|---|
| committer |   Jean Delvare <khali@endymion.delvare> | 2012-05-30 10:55:34 +0200 |
| commit | 838bfa6049fb84dc66c9c9bbeb3a968ec987fd3d (patch) | |
| tree | 5c6cf6d3d7dee7514f62b874b50bf88726144b11 /Documentation | |
| parent | Merge branch 'x86-trampoline-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip (diff) | |
| download | linux-dev-838bfa6049fb84dc66c9c9bbeb3a968ec987fd3d.tar.xz linux-dev-838bfa6049fb84dc66c9c9bbeb3a968ec987fd3d.zip | |
i2c-dev: Add support for I2C_M_RECV_LEN
As the bus driver side implementation of I2C_M_RECV_LEN is heavily
tied to SMBus, we can't support received length over 32 bytes, but
let's at least support that.
In practice, the caller will have to setup a buffer large enough to
cover the case where received length byte has value 32, so minimum
32 + 1 = 33 bytes, possibly more if there is a fixed number of bytes
added for the specific slave (for example a checksum.)
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Douglas Gilbert <dgilbert@interlog.com>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions