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author | David S. Miller <davem@davemloft.net> | 2016-04-23 18:26:24 -0400 |
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committer | David S. Miller <davem@davemloft.net> | 2016-04-23 18:51:33 -0400 |
commit | 1602f49b58abcb0d34a5f0a29d68e7c1769547aa (patch) | |
tree | 4848fb0ffbc581ff465fd9c9e5a5b10b06f09b68 /Documentation/ABI/testing/sysfs-platform-i2c-demux-pinctrl | |
parent | Merge branch 'geneve-vxlan-deps' (diff) | |
parent | Merge tag 'rtc-4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux (diff) | |
download | linux-dev-1602f49b58abcb0d34a5f0a29d68e7c1769547aa.tar.xz linux-dev-1602f49b58abcb0d34a5f0a29d68e7c1769547aa.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts were two cases of simple overlapping changes,
nothing serious.
In the UDP case, we need to add a hlist_add_tail_rcu()
to linux/rculist.h, because we've moved UDP socket handling
away from using nulls lists.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-platform-i2c-demux-pinctrl')
-rw-r--r-- | Documentation/ABI/testing/sysfs-platform-i2c-demux-pinctrl | 29 |
1 files changed, 12 insertions, 17 deletions
diff --git a/Documentation/ABI/testing/sysfs-platform-i2c-demux-pinctrl b/Documentation/ABI/testing/sysfs-platform-i2c-demux-pinctrl index 7ac7d7262bb7..3c3514815cd5 100644 --- a/Documentation/ABI/testing/sysfs-platform-i2c-demux-pinctrl +++ b/Documentation/ABI/testing/sysfs-platform-i2c-demux-pinctrl @@ -1,23 +1,18 @@ -What: /sys/devices/platform/<i2c-demux-name>/cur_master +What: /sys/devices/platform/<i2c-demux-name>/available_masters Date: January 2016 KernelVersion: 4.6 Contact: Wolfram Sang <wsa@the-dreams.de> Description: + Reading the file will give you a list of masters which can be + selected for a demultiplexed bus. The format is + "<index>:<name>". Example from a Renesas Lager board: -This file selects the active I2C master for a demultiplexed bus. + 0:/i2c@e6500000 1:/i2c@e6508000 -Write 0 there for the first master, 1 for the second etc. Reading the file will -give you a list with the active master marked. Example from a Renesas Lager -board: - -root@Lager:~# cat /sys/devices/platform/i2c@8/cur_master -* 0 - /i2c@9 - 1 - /i2c@e6520000 - 2 - /i2c@e6530000 - -root@Lager:~# echo 2 > /sys/devices/platform/i2c@8/cur_master - -root@Lager:~# cat /sys/devices/platform/i2c@8/cur_master - 0 - /i2c@9 - 1 - /i2c@e6520000 -* 2 - /i2c@e6530000 +What: /sys/devices/platform/<i2c-demux-name>/current_master +Date: January 2016 +KernelVersion: 4.6 +Contact: Wolfram Sang <wsa@the-dreams.de> +Description: + This file selects/shows the active I2C master for a demultiplexed + bus. It uses the <index> value from the file 'available_masters'. |