If simulate is not true, then a read I2C device is present.
The global scope ioctl should be called on _fd, not px4_ioctl.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
If PX4_I2C_SIMULATE is set to 1, then the actual I2C device will
not be opened and all transfers will succeed.
If PX4_I2C_SIMULATE is false and transfer() is called, then the
appropriate ioctl is make on the actual device.
if I2C::ioctl is called via px4_ioctl() then the command fails and
a warning is printed to use I2C::transfer
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
To avoid confusion when a real device and a virtual device is
being used, changed CDev to VDev for Linux.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
I2C class derives from CDev class which requires a devname
but in at least some instances, a nullptr is passed for devname.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
For now it uses the bus number as the id. Not sure how this should
actually be mapped.
Seems like the I2C devices come up in random order and have random
id but that a specific device can be found in the /sys/bus/i2c
interface.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Not yet functional. Full implementation will provide an IOCTL interface to
do bi-directional transfer. will model the interface after Linux.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Added more queue support to linux/px4_layer.
Use virt char devices for ms5611, and mavlink.
Added more HRT functionality. uORB latency test
now fails. Likely due to bad HRT impl for Linux.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
