Ever since building
ioload,
I have wished I could see bus throughput for more busses than
just storage. /proc/usbstats is a file similar to /proc/diskstats
that enables tracking of bytes and packets per second to and
from USB devices. This is quite helpful for USB
performance monitoring, as well as providing a
middle-ground for debugging between raw USB packet
capture and no metrics at all.
Analyze transmitter differences between KCUR and KPR.
I suspect KCUR has weak pre-emphasis in their
FM-transmitter, based on differences with KPR,
another public radio station, as well as with
their online broadcast. This analysis will be
done with an audio spectrum analyzer, as well
as two RTL-SDR dongles.
Kenwood USB Radio Control.
The Kenwood radio control project resurfaces
with another iteration and a new hardware
platform. Previously built on FTDI USB
FIFOs and a pile of discrete logic, Cypress
makes an 8051-based microcontroller capable
of implementing both Z80 CPU FIFOs as well
as the status and reset registers of the
Intel 8251 UART. This will be a much
cleaner and more manufacturable design.