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Comment: Re:How ? It doesn't have 3G / WiFi. Needs a router (Score 1) 47

by romiz (#48558563) Attached to: Bluetooth Gains Direct Internet Access, Security Enhancements
The difference is about Bluetooth & Bluetooth Smart (aka Low Energy). The second one is in fact a different protocol, once called Wibree, which uses some parts of the Bluetooth stack, but not a lot of it. While Bluetooth "Classic" already has network connectivity through PAN since a long time ago, Bluetooth Smart, introduced in the 4.0 revision of the specification, does not.

The main reason for this is that the maximum packet size in Bluetooth Smart is quite small (around 256 bytes in the original spec). The latest revision allows for higher MTUs, as well as an IPv6 header compression scheme called 6lowPAN, already developped for IEEE802.15, another low energy radio protocol.

Comment: Re:Broadcom won't release documentation ever (Score 1) 165

by romiz (#47796425) Attached to: Update: Raspberry Pi-Compatible Development Board Cancelled
From what I remember, what is missing in the OMAP/Sitara TRM is documentation about:
- The secure bootloader, so you cannot use secure mode: some features (precise, limited, useful only in very specific cases) in the CPU are blocked
- The GPU documentation, but I've never seen the SGX documentation in any SoC TRM, or for any other GPU

But you still have ~5000 pages of doc in the main TRM, plus all the erratas, which is much better than what many other manufacturers give you, even after signing a NDA.

Comment: Re:US Airlines (Score 1) 240

by romiz (#46220537) Attached to: How To Hack Subway Fares Using Fare Arbitrage
Buying a flight (for example) from Paris to Tokyo is cheaper if changing planes in London, but it is also cheaper to fly from London to Tokyo through Paris, using exactly the same intercontinental flights.

The rationale is that by lowering the price of flights with two parts, you are poaching the clients of the local flag carrier, but with a substandard product due to the increased flight time and the inherent inconvenience. Conversely, incumbent flag carriers do not encounter a lot of concurrence on the direct routes, which means that the prices are geared towards what the customers can pay rather than what the flights cost.

Comment: Re:it's the price, stupid. (Score 1) 810

by romiz (#45499707) Attached to: Electric Cars: Drivers Love 'Em, So Why Are Sales Still Low?
For a reference point, the Bluecars used in a car-sharing service in Paris are for sale at about €12k, after a €7k subvention, but you need to pay an additional €80 a month for battery rental + battery exchange at 400,000 km. And it's a very spartan car, with 4 places but no trunk, clearly designed for city-only use.

Comment: Re:As someone who is taking OS course (Score 1) 332

by romiz (#45416863) Attached to: Aging Linux Kernel Community Is Looking For Younger Participants
You should look at LWN. It's a news site maintained by Jonathan Corbet, who co-authored the popular 'Linux Device Drivers' books for 2.4 and 2.6 kernels, and maintains a weekly newsletter about what currently happens in the Linux community. It also maintains archives, which gives it an index covering the widest range of topics in the Linux kernel.

You can read the 2.6 driver book on LWN as a starter, as there is no radical departure between Linux 3.x and the 2.6.x series. You can even grab an older copy/branch of the kernel like 2.6.32 and run it in a VM, as then there will be no difference between the source you use and what the existing books contain.

Comment: Re:Pricing (Score 2) 189

by romiz (#44846923) Attached to: Nokia Had an Android Phone In Development
As Skype is a network, and does not offer interoperability, it benefits from a network effect: its usefulness compared to its concurrents is the square of the number of ts consumers. This usually leads to a natural monopoly, and Microsoft must have recognized it.

Nokia is now just a device manufacturer, it squandered its 'network' when it abandoned the Symbian users and developers.

Comment: Re:Why? (Score 2) 1233

by romiz (#44657291) Attached to: Don't Fly During Ramadan
You're hopelessly wrong about the origin of Copts. The term itself comes from the 'gpt' consonants in Egypt.

They were living in Egypt before Muslims ever existed, and they still live there because even int the 9th century, Muslim invaders understood that expelling the vast majority of its population is not the right way to do a conquest. They resisted islamic assimilation for 14 centuries, including periods when they were violently reprimed for this. Except for a short period during the Crusades, there has been no direct conflict between Western Christians and Copts, and there was never any significant movement of population from Europe to Egypt.

A committee is a group that keeps the minutes and loses hours. -- Milton Berle