Re: Larkin should like The Unix Haters Handbook

On Sat, 06 Jun 2009 10:26:57 GMT, Jan Panteltje
<pNaonStpealmtje@xxxxxxxxx> wrote:

On a sunny day (Fri, 05 Jun 2009 16:17:07 -0700) it happened John Larkin
<jjlarkin@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in
<3g9j259ngi61k7jcrkdn7vre3j7svv5f2b@xxxxxxx>:

On Fri, 05 Jun 2009 21:28:19 GMT, Jan Panteltje
<pNaonStpealmtje@xxxxxxxxx> wrote:

On a sunny day (Fri, 05 Jun 2009 21:09:26 GMT) it happened nico@xxxxxxxxxxx
(Nico Coesel) wrote in <4a298690.357559687@xxxxxxxxxxxxxx>:

Nobody is perfect... Perhaps it takes a more hardware oriented guy.
The Linux guru I worked with connected the parallel port to an Agilent
MSO. He used that to debug the driver in realtime by writing state
information to the printer port. The ability to load/unload a Linux
kernel driver makes it possible to have very short turn-around times.

That is true, but if your module hangs, then you will need to reboot....


No need to recompile the entire kernel or reboot the machine. It just
shouldn't take that long to get a driver up and running.

Indeed.


Lately I have been doing a lot of Linux kernel hacking myself for a
product which uses Linux on an embedded and I must say most stuff in
the Linux kernel is pretty straightforward.

But the PLX chip isn't. The "data ***" is a 592 page PDF file.

What is a 'PLX' chip?

We're using this one:

http://www.plxtech.com/products/expresslane/pex8311

337 pins.. sigh.
:-)


There's actually two chips in the package, a PCIe-to-PCI bridge, and a
PCI-to-local-bus sort of thing. We're using it to go from an embedded
PC to an FPGA on our board.

John

OK
I was sort of hoping that by now we would have gigabit serial, possibly optical,
links.....

Gee, doesn't your PC have gigabit Ethernet? How about SATA at 3Gb/s?
Want still more? You can have 10G Ethernet, your choice between wire
or optical, if you want. 3 Gb/s USB is coming within the year. Or
isn't 16 lanes of PCIE enough? HyperTransport at 3GB/s is old hat as
well.
.

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