From: Michael Post <michael_post-S0/GAf8tV78@public.gmane.org>
To: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Driver-Support of I2C_M_RECV_LEN
Date: Fri, 20 Jun 2014 14:03:45 +0200 [thread overview]
Message-ID: <53A42321.5020701@web.de> (raw)
Hello,
in the documentation i found at
http://ww2.cs.fsu.edu/~rosentha/linux/2.6.26.5/docs/DocBook/kernel-api/re1222.html
the following sentence:
"Note that using this function requires that the client's adapter
support the I2C_FUNC_SMBUS_READ_BLOCK_DATA functionality. Not all
adapter drivers support this; its emulation through I2C messaging relies
on a specific mechanism (I2C_M_RECV_LEN) which may not be implemented."
The second sentence says that the mechanism I2C_M_RECV_LEN is not all
over implemented.
How i can figure out whether this mechanism will be provided of my driver?
What is the alternative of using the function i2c_smbus_read_block_data?
Thanks a lot for your support,
Michael Post
next reply other threads:[~2014-06-20 12:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-20 12:03 Michael Post [this message]
[not found] ` <53A42321.5020701-S0/GAf8tV78@public.gmane.org>
2014-07-04 7:38 ` Driver-Support of I2C_M_RECV_LEN Michael Post
2014-07-04 7:39 ` Michael Post
2014-07-04 7:58 ` Wolfram Sang
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