udsbr(4): Use config_detach_children.

revert the 0x% -> %# change for fixed width formats pointed out by uwe.

PR/55068: sc.dying: Fix printf formats:
- no %s/%p for kernel log
- 0x% -> %#
- always %j for kernel log

localify

Fix NULL deref, to prevent kernel crashes when detaching an udsbr0 device.

Found with vHCI.

remove explicit 'extern struct cfdriver <my>_cd;' and use ioconf.h

branches: 1.26.16;
Whitespace

+#include "opt_usb.h"

branches: 1.24.2;
KNF. Remove extra spaces. No functional change.

Merge nick-nhusb

- API / infrastructure changes to support memory management changes.
- Memory management improvements and bug fixes.
- HCDs should now be MP safe
- conversion to KERNHIST based debug
- FS/LS isoc support on ehci(4).
- conversion to kmem(9)
- Some USB 3 support - mostly from Takahiro HAYASHI (t-hash).
- interrupt transfers now get proper DMA operations
- general bug fixes
- kern/48308
- uhub status notification improvements
- umass(4) probe fix (applied to HEAD already)
- ohci(4) short transfer fix

branches: 1.22.12; 1.22.14; 1.22.18;
Consistent/Correct error message from failing usbd_set_config.

Use aprint_error_dev.

branches: 1.21.2;
minor cleanups from usbmp:
- move usbd_delay_ms() into usbdivar.h in the usb_subr.c section
- minor rcsid fixes
- copyright maintenence

Revert previous due to active usbmp branch(es).

Adjust-away inconsistent and trailing whitespace.

branches: 1.18.8; 1.18.12;
Stop using the compatibility macros USB_ATTACH(), USB_DETACH(),
USB_MATCH(), et cetera. These files produce the same assembly
(according to objdump -d) before and after the change

branches: 1.17.2; 1.17.4;
Simplify activation hooks. (sc_dying must die!)

fix up USB drivers printing of autoconf information

1. expand the USB_ATTACH_SETUP macro (requested by jmcneill)

2. reorder the attach function so that the first thing it does is print
newlines.

3. after this, we can call usbd_devinfo_alloc(), which polls the device
allowing a context switch, and aprint_normal() the device information.

this avoids problems where autoconf messages are getting mixed up.

Split device_t and softc for all USB device drivers, and related cosmetic
changes.

Matthias Drochner kindly reviewed this patch, and tested ums, ubt, uaudio
and ral. I tested umass myself.

branches: 1.14.2;
Remove clause 3 and 4 from TNF licenses

branches: 1.13.6; 1.13.8; 1.13.10;
Use device_t and its accessor functions.

Register _childdetached methods with drivers that attach children.
Wait to set child references to NULL there, instead of doing that
in the detach method.

Replace many uses of USB_DECLARE_DRIVER() with CFATTACH_DECL2().

branches: 1.12.12; 1.12.18;
Introduce different autoconf interface attributes for USB drivers
matching (and handling) a whole device and those which match an
interface only. This will allow to enforce some rules, eg that
the former don't use interface information for matching or that the
latter don't modify global device state.
The previous way left too much freedom do the drivers which led to
inconsistencies and abuse.
For now, I've not changed locators and submatch rules, this will
happen later.
There should not be any change in behaviour, except in the case of
some drivers which did behave inconsistently:
if_atu, if_axe, uep: matched the configured device in the interface
stage, but did configuration again. I've converted them to match
in the device stage.
ustir, utoppy: matched in the interface stage, but only against
vendor/device information, and used any configuration/interface
without checking. Changed to match in device stage, and added
some simple code to configure and use the first interface.
If you have one of those devices, please test!

branches: 1.11.26; 1.11.30; 1.11.32; 1.11.36;
merge ktrace-lwp.

branches: 1.10.2;
Don't keep the devinfo string on the stack, instead use malloc/free.
This should cure some rare stack overflows.

constify audio_hw_if, midi_hw_if, and radio_hw_if.

use bounded string ops (snprintf, strl*)

branches: 1.7.6;
Get rid of trailing white space.

branches: 1.6.8;
Remove obsolete prototype for "udsbr_search".

Whitespace changes.

branches: 1.4.2; 1.4.4;
Correct the frequency calculation.

Fix typos.

Move debug define.
Remove some cruft.
Update with some stuff from Warner Losh's driver.

Add udsbr(4), a D-Link DSB-R100 FM radio (untested).