src/sys/dev/iicbus, branch release/8.2.0

MFC r208839,214999:

2010-11-23T14:13:12+00:00

Add two new flags (IIC_M_NOSTOP and IIC_M_NOSTART) to struct iic_msg to
allow consumers of iicbus_transfer() to send messages with repeated starts.

Reviewed by:	imp, thompsa

MFC r207554:

2010-11-15T17:48:13+00:00

  Add new tunable 'net.link.ifqmaxlen' to set default send interface
  queue length. The default value for this parameter is 50, which is
  quite low for many of today's uses and the only way to modify this
  parameter right now is to edit if_var.h file. Also add read-only
  sysctl with the same name, so that it's possible to retrieve the
  current value.

MFC r212413: bus_add_child: change type of order parameter to u_int

2010-09-20T07:31:08+00:00

- Rename ds1672 and ds133x devices to "ds1672_rtc" and "ds133x_rtc"

2009-04-21T22:48:12+00:00

  respectivly. This will allow one to have a kernel with both devices
  present and use it for multiple boards with different types of RTC
  sitting on a bus.

Discussed with:	imp

- Give a warning and start the oscillator if it was not previously

2009-04-20T15:47:06+00:00

  runned.
- Rename ds1672 -> rtc to follow the other drivers.
- Refactor/simplify the code a bit.

MFC after:	2 weeks

Change if_output to take a struct route as its fourth argument in order

2009-04-16T20:30:28+00:00

to allow passing a cached struct llentry * down to L2

Reviewed by:	rwatson

Fix iicbus_intr, iicbus_write and device_read_ivar prototypes...

2009-02-10T22:50:23+00:00

Teach iic(4) the 'repeated start' I2C condition. This will be used by the

2009-01-26T13:53:39+00:00

upcoming i2c(8) diag utility.

Reviewed by:	bms, stas
Obtained from:	Semihalf

Change the probe priority for PCI and I2C generic bus modules from

2009-01-20T00:05:43+00:00

numerical constants to BUS_PROBE_GENERIC.

Suggested by:	jhb

Revert revision 186833 and try a different strategy to allow this device to

2009-01-15T23:14:59+00:00

work when the bus attaches its own children. Instead of hardcoding a unit
number and returning BUS_PROBE_NOWILDCARD, which will break multiple iicbus
systems, check in the probe routine whether the device address is 0. Real
I2C devices will never have this address, but devices added with
BUS_ADD_CHILD() will.

Requested by:	jhb
Reviewed by:	jhb