Intel working on low-power Thunderbolt for tablets, smartphones

Intel working on low-power Thunderbolt for tablets, smartphones

Intel says Thunderbolt on mobile devices depends on the future of WiGig, a wireless data transfer specification

By Agam Shah, IDG News Service
June 04, 2013 10:34 AM ET

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IDG News Service - A low-power Thunderbolt interconnect for smartphones and tablets is in the works, but the wired technology may not thrive if consumers prefer products using the wireless WiGig specification for data transfers.

There is a need for faster throughput so smartphones and tablets can connect to high-definition TVs and storage peripherals, said Dadi Perlmutter, executive vice president and general manager of the Intel Architecture Group, in an interview on the sidelines of the Computex trade show in Taipei.

[ IN THE NEWS: Asus, other PC makers announce laptops, desktops with Intel Haswell chips ]

The Thunderbolt data transfer technology shuttles data at high speeds between host computers and peripherals. Intel's mobile Thunderbolt interconnect will be a low-power version of its more power-hungry relative used in Macs and PCs, Perlmutter said. He did not provide a time frame on when the technology would be ready.

Apple was an early adopter of Thunderbolt, and if introduced, low-power Thunderbolt could be a candidate for use in iPhones and iPads. The mobile devices currently use the proprietary Lightning interconnect for charging and connecting to peripherals.

But in the end, adoption of Thunderbolt in smartphones and tablets depends on users, who may prefer wireless data transmission on mobile devices, Perlmutter said.

Intel is backing the WiGig specification, which can transfer data wirelessly at a rate of up to 7Gbps (bits per second), which is faster than standard Wi-Fi. WiGig operates over the 60GHz spectrum, and is intended for use over short distances or within a room. The Wireless Gigabit Alliance leads the development of the WiGig specification, and devices supporting the standard could go on sale next year. The Wi-Fi Alliance is eventually expected to take over WiGig development.

"Do users want Thunderbolt or do they want WiGig? They might want both. We are working on both," Perlmutter said.

"We'll see what's winning," Perlmutter said.

Most non-Apple smartphones and tablets today use the micro-USB ports to connect to peripherals, with USB 3.0 just reaching devices. Asustek introduced the Transformer Pad Infinity with a USB 3.0 port at Computex.

Also, adoption of Thunderbolt on desktops and laptops has been poor due to the dominance of USB 3.0, which is slower but ubiquitous. Thunderbolt peripherals and cables are also expensive relative to USB 3.0.

Intel in April doubled the speed of the Thunderbolt interconnect -- which supports the PCI-Express and DisplayPort protocols -- to 20Gbps. Standards-setting organizations PCI-Special Interest Group (PCI-SIG) and MIPI Alliance in February started work on a new M-PCIe (mobile PCI-Express) specification, which is due to be finalized this quarter.

[Linux] Redirecting output with sudo

ref: http://notfaq.wordpress.com/2007/09/26/unixlinux-redirect-output-as-sudo

Unix/Linux — Redirect output with sudo

By Rares Vernica

Sometimes you might need to redirect the output with sudo privileges. For example:

echo myhost.com > /etc/hostname

will give you the following error:

-bash: /etc/hostname: Permission denied

Unfortunately, using:

sudo echo myhost.com > /etc/hostname

will give the same error.

The solution is to start bash as sudo and then give the entire command tobash as input:

sudo bash -c “echo myhost.com > /etc/hostname”

Or as one reader suggested:

echo myhost.com | sudo tee /etc/hostname

Horrors about the hashes we use today!

Coding Horror: Speed Hashing

how to read L2 cache hit/miss rate in Android (ARM)?

how to read L2 cache hit/miss rate in Android (ARM)? - Stack Overflow

Most Popular Embedded Gurus Blog Posts of 2012

Ref: http://embeddedgurus.com/blog/2012/12/most-popular-embedded-gurus-blog-posts-of-2012

Most Popular Embedded Gurus Blog Posts of 2012

Wednesday, December 26th, 2012 by Michael Barr

Below are the top 10 most read blog posts from the Embedded Gurus in 2012.

#1: Efficient C Tip #13: Use the Modulus (%) Operator with Caution

#2: A Tutorial on Lookup Tables in C

#3: Combining C’s volatile and const Keywords

#4: A Tutorial on Signed and Unsigned Integers

#5: What Belongs in a C .h Header File?

#6: Computing Your Stack Size

#7: Is “(unint16_t) -1″ Portable C Code?

#8: The Absolute Truth About abs()

#9: Do Inline Function Bodies Belong in C Header Files?

#10: Trends in Embedded Software Design

Next Unit of Computing: Introduction

New Intel Next Unit of Computing

Next Unit of Computing: Shock Drop Test

Drop test of the new Intel Next Unit of Computing (NUC)

What is a .NSF file seen in some web client?

Source: http://www.sitepoint.com/forums/showthread.php?64318-What-is-NSF-files


NSF/Notes/Domino is not a scripting language and is not similar to ASP/PHP. NSF stands for "Notes Storage Facility". The system architecture is roughly as follows:

Code:

+----------------+
| Notes (client) |
+----------------+
         |
+----------------+
| Domino (server)|
+----------------+
         |
+----------------+
|   .NSF file    |
|(Notes database)|
+----------------+

So an NSF file is just the database that Domino uses. Even the term "database" is a misnomer. The NSF contains security rules, application code and data all in one file, and can also normally be accessed directly from the client without using a Domino server. Each Domino application/website/whatever can be one or more databases.

The Notes/Domino system is fairly unique. It's an entire infrastructure that handles security, storage, scripting etc. The closest alternative I can think of is Zope, but even that doesn't do everything Notes/Domino can do.

In terms of development languages, you can use C, Java, LotusScript (kind of like VBScript), Formula Language (a proprietary very high level language) and probably one or two others.

In terms of "is it any good", that depends on what you need to do, and how you need to do it. For some things, it can't be beaten.

In terms of where can you get a copy - it costs $$$  However if you want to try developing in a superficially similar environment (as far as web apps are concerned anyway) give Zope a go.

FTP : mput with no confirmation

Reference: http://cisconet.com/tcpip/tcpip-general/103-ftp-mput-with-no-confirmation.html



When you are transferring multiple files to your destination, 'mput' or 'mget' will be the one command used. Well, if we don't have ftp application at that time. Especially, more than 50 files need to be transferred ? confirmation would be hassle.


The prompt feature of the mput command can be disabled by invoking ftp with the -i option. In this instance, all file names that match the pattern in your mput command will be transferred
without confirmation.


Here is the way to avoid the hassle.


when you login, use '-i' option




ex) ftp -i ftp.test.com
ftp>cd [taget directory]
ftp>mput *




and try 'mput' or 'mget'


Now, ftpd won't ask a confirmation.
This tips make my life easier.

[Clearcase] How to find view-private files in snapshot views

This DOS command, when executed from a snapshot view path (where you want to start searching from), allows you to list out view-private files:
C:\view\view_tag\path_within_view\for /F "usebackq delims=" %i in (`cleartool ls -r ^| find /V "Rule:" ^| find /V "hijacked" ^| find /V "eclipsed" ^| find /V "-->" ^| find /V "not loaded"`) do @echo "%i"

The "cleartool ls -r" lists out all the files recursively which includes all types of elements which included those e.g. not loaded, eclipsed, hijacked etc.
You can then make use of "find /V" to weed out those that you do not want to see in the "cleartool ls -r" output.