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authorjhb <jhb@FreeBSD.org>2015-02-06 16:09:01 +0000
committerjhb <jhb@FreeBSD.org>2015-02-06 16:09:01 +0000
commit571edab7e40427c587347cfdc33ac92bd143836b (patch)
treec5571a1caff25473e47bc9c6a9b8b5a332646e70 /lib/Makefile
parent51c4218ae3eb8613bc33e463e0d5a7546b667f5a (diff)
downloadFreeBSD-src-571edab7e40427c587347cfdc33ac92bd143836b.zip
FreeBSD-src-571edab7e40427c587347cfdc33ac92bd143836b.tar.gz
Add a new device control utility for new-bus devices called devctl. This
allows the user to request administrative changes to individual devices such as attach or detaching drivers or disabling and re-enabling devices. - Add a new /dev/devctl2 character device which uses ioctls for device requests. The ioctls use a common 'struct devreq' which is somewhat similar to 'struct ifreq'. - The ioctls identify the device to operate on via a string. This string can either by the device's name, or it can be a bus-specific address. (For unattached devices, a bus address is the only way to locate a device.) Bus drivers register an eventhandler to claim unrecognized device names that the driver recognizes as a valid address. Two buses currently support addresses: ACPI recognizes any device in the ACPI namespace via its full path starting with "\" and the PCI bus driver recognizes an address specification of 'pci[<domain>:]<bus>:<slot>:<func>' (identical to the PCI selector strings supported by pciconf). - To make it easier to cut and paste, change the PnP location string in the PCI bus driver to output a full PCI selector string rather than 'slot=<slot> function=<func>'. - Add a devctl(3) interface in libdevctl which provides a wrapper around the ioctls and is the preferred interface for other userland code. - Add a devctl(8) program which is a simple wrapper around the requests supported by devctl(3). - Add a device_is_suspended() function to check DF_SUSPENDED. - Add a resource_unset_value() function that can be used to remove a hint from the kernel environment. This is used to clear a hint.<driver>.<unit>.disabled hint when re-enabling a boot-time disabled device. Reviewed by: imp (parts) Requested by: imp (changing PCI location string) Relnotes: yes
Diffstat (limited to 'lib/Makefile')
-rw-r--r--lib/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Makefile b/lib/Makefile
index c00af75..fdab453 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -41,6 +41,7 @@ SUBDIR= ${SUBDIR_ORDERED} \
${_libcom_err} \
libcompat \
libcrypt \
+ libdevctl \
libdevinfo \
libdevstat \
libdpv \
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