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| author | nwhitehorn <nwhitehorn@FreeBSD.org> | 2009-01-06 17:23:37 +0000 |
|---|---|---|
| committer | nwhitehorn <nwhitehorn@FreeBSD.org> | 2009-01-06 17:23:37 +0000 |
| commit | 4d7a485a5266b1987891fc4cd20902fc96d1a88a (patch) | |
| tree | 6451bf655643fdb49d8fd50ea77f0f8149f7b436 /sys/dev/iicbus/iicbus.c | |
| parent | 2fd77860b9c036749ea1b22a224818e1a757a1e3 (diff) | |
| download | FreeBSD-src-4d7a485a5266b1987891fc4cd20902fc96d1a88a.zip FreeBSD-src-4d7a485a5266b1987891fc4cd20902fc96d1a88a.tar.gz | |
Change the way I2C bus attachment works to allow firmware-assisted bus
subclasses as are available with PCI. Changes I2C device drivers without
real probe logic to return BUS_PROBE_NOWILDWARD to avoid interference with
firmware bus enumeration, and reduces the probe priority of the iicbus
base driver to allow subclass attachment at higher priority.
Discussed on: freebsd-arch
Diffstat (limited to 'sys/dev/iicbus/iicbus.c')
| -rw-r--r-- | sys/dev/iicbus/iicbus.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/dev/iicbus/iicbus.c b/sys/dev/iicbus/iicbus.c index de64874..e926984 100644 --- a/sys/dev/iicbus/iicbus.c +++ b/sys/dev/iicbus/iicbus.c @@ -53,7 +53,9 @@ iicbus_probe(device_t dev) { device_set_desc(dev, "Philips I2C bus"); - return (0); + + /* Allow other subclasses to override this driver. */ + return (-1000); } #if SCAN_IICBUS |
