Adjust previous change so that it only replaces my home-grown define
for the end marker with the new official DDB_END_CMD marker that it
introduced. Undo the rest of that last change.
As the author of this example I'm pretty sure what example I wanted to
set and this narration order is an important part of it.
atmospheric pressure sensor. This is an inexpensive to moderately
expensive chip available from a large number of places. The driver
supports all aspects of the two chips, except for the repeating read
mode which would allow for sub-second queries, such as fall detection
or perhaps even as an altimeter. This driver also only supports the
I2C interface and not the SPI interface.
The BME280, the one with humidity, is not fully tested at this point,
awaiting upon a breakout board and may not show proper humidity.
This is inspired by the cxdtv(4) driver.
Tested on NetBSD/amd64 with a Sound Blaster Live! Value (CT4870, PCI)
and with a Sound Blaster Audigy Rx 7.1 (SB1550, PCIe).
Additional sound cards sponsored by the NetBSD Foundation; thanks!
Tested on NetBSD/amd64 with a Sound Blaster Live! Value (CT4870)
Note that this required setting outputs.master to the maximum value
allowed (255) to get sound out, and then cranking the volume pretty
high.
Additional sound cards sponsored by the NetBSD Foundation; thanks!
clang complains that the option has no effect and it generates hard
float instructions without the option. soft-float not really supported
on x86_64 with clang from what I can tell.
Make it easier to test this one out, add `load amdgpu` before boot netbsd.
XXX there should probably be a drm block in sys/modules/Makefile which
includes aarch64.
to avoid a circular dependency as noted in kern/56772. Retain minimal
modules of the original names to accomodate auto-loading upon access
to the /dev/xxx nodes.
the iic module. There are valid configurations where i2c_subr code
can be both built-in and part of a loaded module (eg, piixpm is in
the kernel, but the iic module is loaded later). This causes the
in-kernel linker to detect a duplicate symbol.
interfaces, make sure that initialization and destruction
follow the proper sequence. This is triggered by the recent
changes to the devsw stuff; per riastradh@ the required call
sequence is:
devsw_attach()
config_init_component() or config_cf*_attach()
...
config_fini_component() or config_cf*_detach()
devsw_detach()
While here, add a few missing calls to some of the detach
routines.
Testing of these changes has been limited to:
1. compile without build break
2. no related test failures from atf
3. modload/modunload work as well as
before.
No functional device testing done, since I don't have any
of these devices. Let me know of any damage I might cause
here!
XXX Some of the modules affected by this commit are already
XXX broken; see kern/56772. This commit does not break
any additional modules (as far as I know).
Prune a whole lotta dead branches as a result of this. (Some logic
calling this is also wrong for other reasons; devsw_detach is final
-- you should never have any reason to decide to roll it back. To be
cleaned up in subsequent commits...)
XXX kernel ABI change to devsw_detach signature requires bump
Driver module as illustrated here:
https://www.sparkfun.com/products/13911
A SCMD module is a ARM SOC simular to a Arduino in front of a motor
driver chip. The single SCMD module can control two motors and up to
16 additional modules can be chained together using an internal I2C
bus. One can interface with the SCMD using tty uart commands, SPI or
I2C. The driver in this commit adds a kernel driver for the I2C and
SPI interfaces. The command line utility provides a set of
convenience commands that support most of the functions of the SCMD
and is able to use the tty uart mode, SPI user land or the included
kernel driver in a uniform manor.
The use of the SCMD module is mostly for small robots and the like,
but it can control anything that is controllable by voltage.
mrg