MFC r207020, r207027, r207072.

 Change usb devd events from fake attach to a notify. The ugen device is not a
 proper device_t so it faked the devctl event to appear like one, this is now a
 notify which allows more information to be passed.

 We notify for both the device attach/detach and for each usb interface. A devd
 rule can now match on the interface properties, including composite devices
 which may have a uvideo interface and also usound and possibly uhid too.

 An example to match a umass device with a scsi subclass and BBB protocol would be

 notify 100 {
 	match "system"          "USB";
 	match "subsystem"       "INTERFACE";
 	match "type"            "ATTACH";
 	match "intclass"        "0x08";
 	match "intsubclass"     "0x06";
 	match "intprotocol"     "0x50";
 	action ...
 };

 The old attach devctl event has been retained for the moment to make merging to
 8.1 easier. This was never compatible with 7.x or earlier due to the ugen regex
 change needed.

 Document the new USB notification types.

1 files changed, 55 insertions, 1 deletions

diff --git a/sbin/devd/devd.conf.5 b/sbin/devd/devd.conf.5
index f7efefb..17c5e09 100644
--- a/sbin/devd/devd.conf.5
+++ b/sbin/devd/devd.conf.5
@@ -250,18 +250,40 @@ CIS-vendor.
 Device class.
 .It Li device
 Device ID.
+.It Li devclass
+Device Class (USB)
+.It Li devsubclass
+Device Sub-class (USB)
 .It Li device-name
 Name of attached/detached device.
+.It Li endpoints
+Endpoint count (USB)
 .It Li function
 Card functions.
+.It Li interface
+Interface ID (USB)
+.It Li intclass
+Interface Class (USB)
+.It Li intprotocol
+Interface Protocol  (USB)
+.It Li intsubclass
+Interface Sub-class (USB)
 .It Li manufacturer
 Manufacturer ID (pccard).
+.It Li mode
+Peripheral mode (USB)
 .It Li notify
 Match the value of the
 .Dq Li notify
 variable.
+.It Li parent
+Parent device
+.It Li port
+Hub port number (USB)
 .It Li product
-Product ID (pccard).
+Product ID (pccard/USB).
+.It Li release
+Hardware revision (USB)
 .It Li serial
 Serial Number (USB).
 .It Li slot
@@ -342,6 +364,27 @@ The
 node is destroyed.
 .El
 .El
+.It Li USB
+Events related to the USB subsystem.
+.Bl -tag -width ".Sy Subsystem" -compact
+.It Sy Subsystem
+.It Li DEVICE
+.Bl -tag -width ".Li DETACH" -compact
+.It Sy Type
+.It Li ATTACH
+USB device is attached to the system.
+.It Li DETACH
+USB device is detached from the system.
+.El
+.It Li INTERFACE
+.Bl -tag -width ".Li DETACH" -compact
+.It Sy Type
+.It Li ATTACH
+USB interface is attached from a device.
+.It Li DETACH
+USB interface is detached from a device.
+.El
+.El
 .It Li coretemp
 Events related to the
 .Xr coretemp 4
@@ -461,6 +504,17 @@ notify 0 {
 };
 
 #
+# Match a USB device type
+#
+notify 0 {
+	match "system"			"USB";
+	match "subsystem"		"INTERFACE";
+	match "type"			"ATTACH";
+	match "intclass"		"0x0e";
+	action "logger USB video device attached";
+};
+
+#
 # Try to configure ath and wi devices with pccard_ether
 # as they are attached.
 #