bagder is currently certified at Master level.

Name: Daniel Stenberg
Member since: 2000-05-10 09:34:05
Last Login: 2009-12-04 19:23:29

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Homepage: http://daniel.haxx.se/

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My blog is on daniel.haxx.se/blog

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Firefox OS Flatfish Bluedroid fix

Hey, when I just built my own Firefox OS (b2g) image for my Firefox OS Tablet (flatfish) I ran into this (known) problem:

Can't find necessary file(s) of Bluedroid in the backup-flatfish folder.
Please update the system image for supporting Bluedroid (Bug-986314),
so that the needed binary files can be extracted from your flatfish device.

So, as I struggled to figure out the exact instructions on how to proceed from this, I figured I should jot down what I did in the hopes that it perhaps will help a fellow hacker at some point:

  1. Download the 3 *.img files from the dropbox site that is referenced from bug 986314.
  2. Download the flash-flatfish.sh script from the same dropbox place
  3. Make sure you have ‘fastboot’ installed (I’m mentioning this here because it turned out I didn’t and yet I have already built and flashed my Flame phone successfully without having it). “apt-get install android-tools-fastboot” solved it for me. Note that if it isn’t installed, the flash-flatfish.sh script will claim that the device is not in fastboot mode and stop with an error message saying so.
  4. Finally: run the script “./flash-flatfish.sh [dir with the 3 .img files]“
  5. Once it had succeeded, the tablet reboots
  6. Remove the backup-flatfish directory in the build dir.
  7. Restart the flatfish build again and now it should get passed that Bluedroid nit

Enjoy!

Syndicated 2014-08-29 12:11:30 from daniel.haxx.se

Going to FOSDEM 2015

Yeps,

I’m going there and I know several friends are going too, so this is just my way of pointing this out to the ones of you who still haven’t made up your mind! There’s still a lot of time left as this event is taking place late January next year.

I intend to try to get a talk to present this time and I would love to meet up with more curl contributors and fans.

fosdem

Syndicated 2014-08-27 09:01:10 from daniel.haxx.se

Credits in the curl project

Friends!

When we receive patches, improvements, suggestions, advice and whatever that lead to a change in curl or libcurl, I make an effort to log the contributor’s name in association with that change. Ideally, I add a line in the commit message. We use “Reported-by: <full name>” quite frequently but also other forms of “…-by: <full name>” too like when there was an original patch by someone or testing and similar. It shouldn’t matter what the nature of the contribution is, if it helped us it is a contribution and we say thanks!

curl-give-credits

I want all patch providers and all of us who have push rights to use this approach so that we give credit where credit is due. Giving credit is the only payment we can offer in this project and we should do it with generosity.

The green bars on the right show the results from the question how good we are at giving credit in the project from the 2014 curl survey, where 5 is really good and 1 is really bad. Not too shabby, but I’d say we can do even better! (59% checked the top score, 15% checked the 3′)

I have a script called contributors.sh that extracts all contributors since a tag (typically the previous release) and I use that to get a list of names to thank in the RELEASE-NOTES file for the pending curl release. Easy and convenient.

After very release (which means every 8th week) I then copy the list of names from RELEASE-NOTES into docs/THANKS. So all contributors get remembered and honored after having helped us in one way or another.

When there’s no name

When contributors don’t provide a real name but only a nick name like foobar123, user_5678 and so on I tend to consider that as request to not include the person’s name anywhere and hence I tend to not include it in the THANKS or RELEASE-NOTES. This also sometimes the result of me not always wanting to bother by asking people over and over again for their real name in case they want to be given proper and detailed credit for what they’ve provided to us.

Unfortunately, a notable share of all contributions we get to the project are provided by people “hiding” behind a made up handle. I’m fine with that as long as it truly is what the helpers’ actually want.

So please, if you help us out, we will happily credit you, but please tell us your name!

keep-calm-and-improve-curl

Syndicated 2014-08-25 20:38:44 from daniel.haxx.se

My home setup

I work in my home office which is upstairs in my house, perhaps 20 steps from my kitchen and the coffee refill. I have a largish desk with room for a number of computers. The photo below shows the three meter beauty. My two kids have their two machines on the left side while I use the right side of it for my desktop and laptop.

Daniel's home office

Many computers

The kids use my old desktop computer with a 20″ Dell screen and my old 15.6″ dual-core Asus laptop. My wife has her laptop downstairs and we have a permanent computer installed underneath the TV for media (an Asus VivoPC).

My desktop computer

I’m primarily developing C and C++ code and I’m frequently compiling rather large projects – repeatedly. I use a desktop machine for my ordinary development, equipped with a fairly powerful 3.5GHz quad-core Core-I7 CPU, I have my OS, my home dir and all source code put on an SSD. I have a larger HDD for larger and slower content. With ccache and friends, this baby can build Firefox really fast. I put my machine together from parts myself as I couldn’t find a suitable one focused on horse power but yet a “normal” 2D graphics card that works Fractal Designfine with Linux. I use a Radeon HD 5450 based ASUS card, which works fine with fully open source drivers.

I have two basic 24 inch LCD monitors (Benq and Dell) both using 1920×1200 resolution. I like having lots of windows up, nothing runs full-screen. I use KDE as desktop and I edit everything in Emacs. Firefox is my primary browser. I don’t shut down this machine, it runs a few simple servers for private purposes.

My machines (and my kids’) all run Debian Linux, typically of the unstable flavor allowing me to get new code reasonably fast.

Func KB-460 keyboardMy desktop keyboard is a Func KB-460, mechanical keyboard with some funky extra candy such as red backlight and two USB ports. Both my keyboard and my mouse are wired, not wireless, to take away the need for batteries or recharging etc in this environment. My mouse is a basic and old Logitech MX 310.

I have a crufty old USB headset with a mic, that works fine for hangouts and listening to music when the rest of the family is home. I have Logitech webcam thing sitting on the screen too, but I hardly ever use it for anything.

When on the move

I need to sometimes move around and work from other places. Going to conferences or even our regular Mozilla work weeks. Hence I also have a laptop that is powerful enough to build Firefox is a sane amount of time. I have Lenovo Thinkpad w540a Lenovo Thinkpad W540 with a 2.7GHz quad-core Core-I7, 16GB of RAM and 512GB of SSD. It has the most annoying touch pad on it. I don’t’ like that it doesn’t have the explicit buttons so for example both-clicking (to simulate a middle-click) like when pasting text in X11 is virtually impossible.

On this machine I also run a VM with win7 installed and associated development environment so I can build and debug Firefox for Windows on it.

I have a second portable. A small and lightweight netbook, an Eeepc S101, 10.1″ that I’ve been using when I go and just do presentations at places but recently I’ve started to simply use my primary laptop even for those occasions – primarily because it is too slow to do anything else on.

I do video conferences a couple of times a week and we use Vidyo for that. Its Linux client is shaky to say the least, so I tend to use my Nexus 7 tablet for it since the Vidyo app at least works decently on that. It also allows me to quite easily change location when it turns necessary, which it sometimes does since my meetings tend to occur in the evenings and then there’s also varying amounts of “family activities” going on!

Backup

For backup, I have a Synology NAS equipped with 2TB of disk in a RAIDSynology DS211j stashed downstairs, on the wired in-house gigabit ethernet. I run an rsync job every night that syncs the important stuff to the NAS and I run a second rsync that also mirrors relevant data over to a friends house just in case something terribly bad would go down. My NAS backup has already saved me really good at least once.

Printer

HP Officejet 8500ANext to the NAS downstairs is the house printer, also attached to the gigabit even if it has a wifi interface of its own. I just like increasing reliability to have the “fixed services” in the house on wired network.

The printer also has scanning capability which actually has come handy several times. The thing works nicely from my Linux machines as well as my wife’s windows laptop.

Internet

fiber cableI have fiber going directly into my house. It is still “just” a 100/100 connection in the other end of the fiber since at the time I installed this they didn’t yet have equipment to deliver beyond 100 megabit in my area. I’m sure I’ll upgrade this to something more impressive in the future but this is a pretty snappy connection already. I also have just a few milliseconds latency to my primary servers.

Having the fast uplink is perfect for doing good remote backups.

Router  and wifi

dlink DIR 635I have a lowly D-Link DIR 635 router and wifi access point providing wifi for the 2.4GHz and 5GHz bands and gigabit speed on the wired side. It was dead cheap it just works. It NATs my traffic and port forwards some ports through to my desktop machine.

The router itself can also update the dyndns info which ultimately allows me to use a fixed name to my home machine even without a fixed ip.

Frequent Wifi users in the household include my wife’s laptop, the TV computer and all our phones and tablets.

Telephony

Ping Communication Voice Catcher 201EWhen I installed the fiber I gave up the copper connection to my home and since then I use IP telephony for the “land line”. Basically a little box that translates IP to old phone tech and I keep using my old DECT phone. We basically only have our parents that still call this number and it has been useful to have the kids use this for outgoing calls up until they’ve gotten their own mobile phones to use.

It doesn’t cost very much, but the usage is dropping over time so I guess we’ll just give it up one of these days.

Mobile phones and tablets

I have a Nexus 5 as my daily phone. I also have a Nexus 7 and Nexus 10 that tend to be used by the kids mostly.

I have two Firefox OS devices for development/work.

Syndicated 2014-08-25 06:57:09 from daniel.haxx.se

The “right” keyboard layout

I’ve never considered myself very picky about the particular keyboard I use for my machines. Sure, I work full-time and spare time in front of the same computer and thus I easily spend 2500-3000 hours a year in front of it but I haven’t thought much about it. I wish I had some actual stats on how many key-presses I do on my keyboard on an average day or year or so.

Then, one of these hot summer days this summer I left the roof window above my work place a little bit too much open when a very intense rain storm hit our neighborhood when I was away for a brief moment and to put it shortly, the huge amounts of water that poured in luckily only destroyed one piece of electronics for me: my trusty old keyboard. The keyboard I just randomly picked from some old computer without any consideration a bunch of years ago.

So the old was dead, I just picked another keyboard I had lying around.

But man, very soft rubber-style keys are very annoying to work with. Then I picked another with a weird layout and a control-key that required a little too much pressure to work for it to be comfortable. So, my race for a good enough keyboard had begun. Obviously I couldn’t just pick a random cheap new one and be happy with it.

Nordic key layout

That’s what they call it. It is even a Swedish layout, which among a few other details means it features å, ä and ö keys at a rather prominent place. See illustration. Those letters are used fairly frequently in our language. We have a few peculiarities in the Swedish layout that is downright impractical for programming, like how the {[]} – symbols all require AltGr pressed and slash, asterisk and underscore require Shift to be pressed etc. Still, I’v'e learned to program on such a layout so I’m quite used to those odd choices by now…

kb-nordic

Cursor keys

I want the cursor keys to be of “standard size”, have the correct location and relative positions. Like below. Also, the page up and page down keys should not be located close to the cursor keys (like many laptop keyboards do).

keyboard with marked cursorkeys

Page up and down

The page up and page down keys should instead be located in the group of six keys above the cursor keys. The group should have a little gap between it and the three keys (print screen, scroll lock and pause/break) above them so that finding the upper row is easy and quick without looking.

page up and down keysBackspace

I’m not really a good keyboard typist. I do a lot of mistakes and I need to use the backspace key quite a lot when doing so. Thus I’m a huge fan of the slightly enlarged backspace key layout so that I can find and hit that key easily. Also, the return key is a fairly important one so I like the enlarged and strangely shaped version of that as well. Pretty standard.

kb-backspaceFurther details

The Escape key should have a little gap below it so that I can find it easily without looking.

The Caps lock key is completely useless for locking caps is not something a normal person does, but it can be reprogrammed for other purposes. I’ve still refrained from doing so, mostly to not get accustomed to “weird” setups that makes it (even) harder for me to move between different keyboards at different places. Just recently I’ve configured it to work as ctrl – let’s see how that works out.

The F-keys are pretty useless. I use F5 sometimes to refresh web pages but as ctrl-r works just as well I don’t see a strong need for them in my life.

Numpad – a completely useless piece of the keyboard that I would love to get rid of – I never use any of those key. Never. Unfortunately I haven’t found any otherwise decent keyboards without the numpad.

Func KB-460

The Func KB-460 is the keyboard I ended up with this time in my search. It has some fun extra cruft such as two USB ports and a red backlight (that can be made to pulse). The backlight gave me extra points from my kids.

Func KB-460 keyboard

It is “mechanical” which obviously is some sort of thing among keyboards that has followers and is supposed to be very good. I remain optimistic about this particular model, even if there are a few minor things with it I haven’t yet gotten used to. I hope I’ll just get used to them.

How it could look

Based on my preferences and what keys I think I use, I figure an ideal keyboard layout for me could very well look like this:

my keyboard layout

Keyfreq

I have decided to go further and “scientifically” measure how I use my keyboard, which keys I use the most and similar data and metrics. Turns out the most common keylog program on Linux doesn’t log enough details, so I forked it and created keyfreq for this purpose. I’ll report details about this separately – soon.

Syndicated 2014-08-20 09:26:36 from daniel.haxx.se

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