specially crafted module. There are several handrolled sollutions to this
problem in the tree already which will be replaced with this. They include
iwi(4), ipw(4), ispfw(4) and digi(4).
No objection from: arch
MFC after: 2 weeks
X-MFC after: some drivers have been converted
function in years.
- Change the 'ident' paramters to 'wchan' to match <sys/systm.h>.
- Use 'otherwise' in place of 'else' in one place so that this reads like
English rather than C.
- Document the new msleep_spin() function.
- Add history notes for msleep() and msleep_spin().
USB device drivers use to talk to USB devices. This is probably
still a bit rough and it does not yet include the functions specific
to HID, ethernet, hubs, host controller drivers, task threads or
debugging.
ago. Document the real behavior of bus_dma_tag_create, bus_dmamap_load,
and other functions. Also document their arguments and return values.
MFC After: 3 days
probed and attached, not on the first call to device_get_softc().
- Add a cross reference to DEVICE_PROBE regarding the caveats of using the
softc in a driver's probe routine.
- Fix a grammar bogon.
PR: docs/87176 (1)
Submitted by: Devon H. O'Dell dodell at offmyserver dot com (1)
MFC after: 3 days
microtime to bintime. However, one standaline .Nm wasn't changed, and as
a result, the manpage claimed that bintime was added in both 5.0 and 3.0.
Fix by listing microtime explicitly.
- Fix a grammar bogon.
PR: docs/87147 (1)
Submitted by: Matthew Luckie (1)
MFC after: 3 days
- Remove references to cpu_critical_*() as they no longer exist.
- Explain that any preemptions that occur during a critical section are
deferred until the current thread exits the section.
- Remove a bogus example usage of a critical section.
- Note that one can interlock critical sections with spin mutexes in
certain situations.
MFC after: 3 days
replacement and has additional features which make it superior.
Discussed on: -arch
Reviewed by: thompsa
X-MFC-after: never (RELENG_6 as transition period)
- Add arm and ppc to the list of archs not supporting operations on 64-bit
integers.
- Update the sample code for acquiring a mutex to be more recent and to
take into account the recent atomic_foo_ptr() changes.
MFC after: 1 week
- Replace 'process' with 'thread' everywhere.
- Update several places to note that that the fact that default mutexes
may adaptively spin isn't necessarily MD, but is just part of the
implementation as a whole.
- Clarify the text about MTX_SPIN mutexes only being appropriate for
INTR_FAST interrupts or other low level scheduler code to make the
jargon more FreeBSD-ish rather than BSD/OS-ish.
- Also, note that it is possible that interrupts aren't blocked but just
deferred when a spin lock is held (the whole blocked vs. deferred bit is
an MD implementation detail).
- Remove statements saying that spin locks must be released in the exact
opposite order that they were acquired. This stopped being true several
years ago when we first added critical sections that stored their state
in the current thread rather than in struct mtx.
- Note that a mutex must be initialized before it is passed to any other
mutex function, not just mtx_lock.
- Clarify that mtx_trylock() only operates on MTX_DEF mutexes.
- Simplify the text about possible preemption during a mtx_unlock().
- Use complete English sentences in place of phrases in a few places.
- Clarify that it isn't ever safe to sleep with a mutex held. The kernel
tends to panic when you do that.
Requested by: scottl (7)
MFC after: 3 days
does not return a list of ASCII NUL terminated strings.
Instead, a list of attribute names is returned, where each
list entry consists of one byte for the name length, followed
by the name, without a terminating ASCII NUL.
This in similar to change 1.17 to extattr_get_file.2
Reviewed by: rwatson, ru
and return a printable representation.
This fixes recognition of the PC Engines WRAP and improves the
recognition of the Soekris boards (Bios version can now be
seen in the dmesg output for instance).
Also, add watchdog support for PCM-582x platforms.
Submitted by: Adrian Steinmann <ast@marabu.ch>
Slightly changed by: phk
PR: 81360
