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| author | loos <loos@FreeBSD.org> | 2014-08-20 19:37:05 +0000 |
|---|---|---|
| committer | loos <loos@FreeBSD.org> | 2014-08-20 19:37:05 +0000 |
| commit | e4ebeceadb6a37e1ccf33800c4312cceabca6b57 (patch) | |
| tree | e6d1dad9e555738abec006db57843693485d6beb /share/man/man4/iicbus.4 | |
| parent | 5efc9173fa69c32dee331f42b6cd63d4b6da7125 (diff) | |
| download | FreeBSD-src-e4ebeceadb6a37e1ccf33800c4312cceabca6b57.zip FreeBSD-src-e4ebeceadb6a37e1ccf33800c4312cceabca6b57.tar.gz | |
MFC r267021:
FreeBSD, historically, has always used 8-bit addresses for i2c devices
(7-bit device address << 1), always leaving the room for the read/write
bit.
This commit convert ti_i2c and revert r259127 on bcm2835_bsc to make them
compatible with 8-bit addresses. Previous to this commit an i2c device
would have different addresses depending on the controller it was attached
to (by example, when compared to any iicbb(4) based i2c controller), which
was a pretty annoying behavior.
Also, update the PMIC i2c address on beaglebone* DTS files to match the
new address scheme.
Now the userland utilities need to do the correct slave address shifting
(but it is going to work with any i2c controller on the system).
Discussed with: ian
MFC r267834:
Clarify the expected usage of I2C 7-bit slave addresses on ioctl(2)
interface.
While here add the cross reference to iic(4) on iicbus(4).
CR: D210
Suggested by: jmg
Diffstat (limited to 'share/man/man4/iicbus.4')
| -rw-r--r-- | share/man/man4/iicbus.4 | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/share/man/man4/iicbus.4 b/share/man/man4/iicbus.4 index f9e5c58..e755a42 100644 --- a/share/man/man4/iicbus.4 +++ b/share/man/man4/iicbus.4 @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd August 6, 1998 +.Dd June 24, 2014 .Dt IICBUS 4 .Os .Sh NAME @@ -104,6 +104,7 @@ Some I2C interfaces are available: .It Sy bktr Ta "Brooktree848 video chipset, hardware and software master-only interface" .El .Sh SEE ALSO +.Xr iic 4 , .Xr iicbb 4 , .Xr lpbb 4 , .Xr pcf 4 |
