Been playing around with PCI hotplug on linux (3.2.1 kernel from kernel.org), or rather, with the fakephp driver (fake PCI hot plug driver). The way it works is you load the fakephp driver, and this creates a bunch of directories in /sys/bus/pci/, one per PCI device (ok, per domain/bus/device/function ) and inside each directory is a “power” file. If you write 0 to the power file, that device is “hot unplugged”. Well, not really, but the driver entry points get called as if it were hot unplugged. It’s surprisingly difficult to find the documenation for this as most searches related to linux and pci hotplug return old stuff.

You can “re-hot-plug” the device back in by echoing a 1 into /sys/bus/pci/rescan.

Anyway, here’s an example of using the fakephp driver to simulate hot unpl

root@hermes:/sys/bus/pci# uname -r
3.2.1
root@hermes:/sys/bus/pci# pwd
/sys/bus/pci
root@hermes:/sys/bus/pci# ls
devices  drivers  drivers_autoprobe  drivers_probe  rescan  resource_alignment  slots  uevent
root@hermes:/sys/bus/pci# ls slots
root@hermes:/sys/bus/pci# modprobe fakephp
root@hermes:/sys/bus/pci# ls slots
0000:00:00.0  0000:00:1b.0  0000:00:1d.2  0000:00:1e.0  0000:01:03.0  0000:01:03.3  0000:01:05.0
0000:00:02.0  0000:00:1d.0  0000:00:1d.3  0000:00:1f.0  0000:01:03.1  0000:01:03.4
0000:00:02.1  0000:00:1d.1  0000:00:1d.7  0000:00:1f.1  0000:01:03.2  0000:01:04.0

Above you see after loading the fakephp driver, the /sys/bus/pci/slots directory
is populated with device directories.

Now I go poking around looking for a network device (because I know the wired
network on my laptop isn’t currently plugged in, so if this doesn’t work, no
harm done so long as it doesn’t crash.)

root@hermes:/sys/bus/pci# lspci | grep -i net
01:04.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
01:05.0 Network controller: Intel Corporation PRO/Wireless 2200BG [Calexico2] Network Connection (rev 05)

So I see I have my Ethernet controller at 01:04.0. Now I start tailing
/var/log/messages so I can see the kernel’s response to my various pokings,
and I kick the unused ethernet adapter out of the system:

root@hermes:/sys/bus/pci# tail -n 0 -f /var/log/messages &
[1] 4294
root@hermes:/sys/bus/pci# echo 0 > slots/0000\:01\:04.0/power 
root@hermes:/sys/bus/pci# Jan 25 21:28:05 hermes kernel: [13781.192061] 8139too 0000:01:04.0: PCI INT A disabled

root@hermes:/sys/bus/pci# lspci | grep -i net
01:05.0 Network controller: Intel Corporation PRO/Wireless 2200BG [Calexico2] Network Connection (rev 05)

Yep, it’s gone. Now add it back in:

root@hermes:/sys/bus/pci# echo 1 > rescan
root@hermes:/sys/bus/pci# Jan 25 21:28:23 hermes kernel: [13799.587819] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment
Jan 25 21:28:23 hermes kernel: [13799.587841] pci 0000:01:04.0: BAR 0: assigned [io  0xd000-0xd0ff]
Jan 25 21:28:23 hermes kernel: [13799.587855] pci 0000:01:04.0: BAR 0: set to [io  0xd000-0xd0ff] (PCI address [0xd000-0xd0ff])
Jan 25 21:28:23 hermes kernel: [13799.587865] pci 0000:01:04.0: BAR 1: assigned [mem 0xfe801000-0xfe8010ff]
Jan 25 21:28:23 hermes kernel: [13799.587878] pci 0000:01:04.0: BAR 1: set to [mem 0xfe801000-0xfe8010ff] (PCI address [0xfe801000-0xfe8010ff])
Jan 25 21:28:23 hermes kernel: [13799.587888] yenta_cardbus 0000:01:03.0: CardBus bridge to [bus 02-01]
Jan 25 21:28:23 hermes kernel: [13799.587896] yenta_cardbus 0000:01:03.0:   bridge window [io  0x0001-0x0000]
Jan 25 21:28:23 hermes kernel: [13799.587907] yenta_cardbus 0000:01:03.0:   bridge window [io  0x0001-0x0000]
Jan 25 21:28:23 hermes kernel: [13799.587919] yenta_cardbus 0000:01:03.0:   bridge window [mem 0x00000001-0x00000000 pref]
Jan 25 21:28:23 hermes kernel: [13799.587930] yenta_cardbus 0000:01:03.0:   bridge window [mem 0x00000001-0x00000000]
Jan 25 21:28:23 hermes kernel: [13799.594036] 8139cp 0000:01:04.0: This (id 10ec:8139 rev 10) is not an 8139C+ compatible chip, use 8139too
Jan 25 21:28:23 hermes kernel: [13799.594093] 8139too 0000:01:04.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20
Jan 25 21:28:23 hermes kernel: [13799.599565] 8139too 0000:01:04.0: eth0: RealTek RTL8139 at 0xd000, 00:11:d8:23:c2:86, IRQ 20
Jan 25 21:28:24 hermes kernel: [13799.639799] 8139too 0000:01:04.0: eth0: link down
Jan 25 21:28:24 hermes kernel: [13799.644372] ADDRCONF(NETDEV_UP): eth0: link is not ready

root@hermes:/sys/bus/pci# lspci | grep -i net
01:04.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
01:05.0 Network controller: Intel Corporation PRO/Wireless 2200BG [Calexico2] Network Connection (rev 05)
root@hermes:/sys/bus/pci#

And now it’s back.

That’s pretty cool. It’s nice when someone likes your software enough to port it to a new platform. And judging by the video, he has also made a few changes (obviously the controls on the ipad are very different, and I noticed the radar and other instruments are moved to the top of the screen in the ipad version.) It looks like a nice port. It does seem to be missing audio, which audio is quite an important component of the game, so this is slightly disappointing, but maybe it’s only missing from the video?

And Word War vi is apparently on iTunes.

What is not yet available, which is a little disconcerting, is the source code. (Update Jan 17, 2012: Source is here: http://code.google.com/p/ppiecuch-projects/downloads/list — Ed.) I have very deliberately licensed Word War vi under the GNU GPL, so providing the source code is a hard mandatory requirement for distribution of any port. I’ve been assured via youtube comment that the source will be forthcoming in a few days. Alright, so far so good, I have no real reason to think this is not the case. That source had better be available in a few days though. It’s also not clear to me whether or not iTunes terms of service are compatible with the GPL.

I’d be interested to know from any iPad owners how the port plays on the iPad. I know on the Open Pandora Word War vi runs slightly slower than is ideal.

Interesting times.

Mostly, pen and ink pictures of hotrods in the style of CARToons magazine.

Pretty sure the dragon one is more or less a copy of something I saw in a magazine or book or something.

Previously.

Here’s an excerpt:

The Louvre Museum has 8.5 million visitors per year. This blog was viewed about 72,000 times in 2011. If it were an exhibit at the Louvre Museum, it would take about 3 days for that many people to see it.

Click here to see the complete report.

Note: You probably don’t want to click that link. You see, the wordpress programmers aren’t idiots, but they are complete dickhead douchebag assholes and they’ve managed to cobble together a “report” which contains a miniscule amount of information presented in a way which maximizes CPU consumption. You’re looking at several CPU-years of processing here to get about a kilobyte — that’s right, a kilobyte — of actual information. WordPress programmers, you’re fucking ASSHOLES. And I should know, because I’m an asshole. Alright, I do realize that it’s probably not the programmers, it’s probably management insisting that the programmers produce asshole software. In any case it is pretty goddamned annoying. Knock it the fuck off, you idiot-assholes. Are you trying to drive me away?

Using the Readability plugin, I was able to scrape some of the info from the asshole report:

Where did they come from?

* North America88.0% The United States
* 9.4% Canada
* 1.9% Mexico
* 0.1% Puerto Rico
* 0.1% Costa Rica

* Europe
* 23.8% The United Kingdom
* 10.1% France
* 9.2% Germany
* 5.4% Netherlands
* 5.3% Italy

* Oceania
* 75.2% Australia
* 23.7% New Zealand
* 0.5% Fiji
* 0.3% Solomon Islands
* 0.2% Northern Mariana Islands

* Asia
* 25.0% India
* 13.4% Malaysia
* 11.9% Philippines
* 7.3% Singapore
* 6.0% Indonesia

* South America
* 48.8% Brazil
* 34.1% Argentina
* 7.6% Colombia
* 4.5% Chile
* 1.5% Venezuela

* Africa53.7% South Africa
* 12.9% Egypt
* 5.5% Mauritius
* 4.5% Kenya
* 4.0% Tunisia

Most visitors came from The United States. The United Kingdom & Canada were not far behind.

The influential writer and cultural critic Christopher Hitchens died on Thursday at the age of 62 from complications of cancer of the esophagus. Hitchens confronted his disease in part by writing, bringing the same unsparing insight to his mortality that he had directed at so many other subjects.

npr.org

And here I am trying to convince you to build a cyclekart:

If you live in Houston, and want to build a cyclekart, or just talk about cyclekarts, come find me at TX/RX labs most any Friday night.

I smeared it in olive oil and a little salt, and then grilled it 6 minutes on each side, then put it onto a piece of aluminum foil on the grill to keep it from charring too much and put a little bit of K.C. Masterpiece barbecue sauce on it, and let it go for another 4 or 5 minutes. I thought about adding a touch of sriracha as well, but decided against it for now. Maybe next time.

I also cooked a combo of sliced onions, squash and potatoes in a foil packet on the grill (total about 40 mins, flipping every once in awhile) and warmed up some Bush’s “grillin’ beans”.

This “south texas ribeye” turned out way better than I expected it to. Imagine the best pork chop of your life, and that’s pretty much how this turned out for me.

Awesome meal. There will definitely be more South Texas Ribeyes in my future.