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posted by takyon on Friday February 01 2019, @10:00PM   Printer-friendly
from the pining-for-the-torvalds dept.

Submitted via IRC for AndyTheAbsurd

Smartphone users are usually torn between the two choice — Android or iOS. Their dominance is such that other competing OS like Windows, BlackBerry OS, or Symbian have almost been abandoned.Those who don't want either of them can opt for Pine64's Linux phone dubbed the PinePhone which offers good hardware and software at an affordable rate of $149.

The phone's specs aren't great, but it does include a headphone jack (I wonder if it's capable of using the JACK audio system?) and the article notes that it may provide physical switches for disabling various components. The company behind it, Pine64, also produce the PineBook Linux laptop, which also use an ARM processor.

Source: https://fossbytes.com/pinephone-linux-smartphone-149/

Related: Kickstarter: Pine A64, Cheaper and More Powerful than Raspberry Pi 2 Model B


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  • (Score: 2) by takyon on Saturday February 02 2019, @01:28AM (14 children)

    by takyon (881) <reversethis-{gro ... s} {ta} {noykat}> on Saturday February 02 2019, @01:28AM (#795269) Journal

    Has that ever been done on a phone?

    I assume you'll take off a back plate to get access to switches, battery, etc.

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  • (Score: 4, Interesting) by Arik on Saturday February 02 2019, @02:33AM (13 children)

    by Arik (4543) on Saturday February 02 2019, @02:33AM (#795281) Journal
    "Has that ever been done on a phone?"

    Yes, that's how they all used to be done. :D

    Even in recent years there have been a few. Palm used to have a physical mute switch to disconnect the ringer, for instance. I think some iphones have those too. It's handy to have; makes sure your phone can't embarrass you by ringing in the middle of a lecture, even if it goes berserk and factory defaults in your pocket.

    I'd like to see a few more of them, and it wouldn't actually be hard to fit them if you design it carefully. One for each radio, one for the microphone, one for the camera if we must have one of those. Physically disconnected they should draw no current from the battery. Switches should be tactile meaning that you can tell which setting they are in by touch.  You should not need to remove anything to access them - positive buttons that require a push down and THEN a slide over are pretty safe in the pockets.
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    • (Score: 4, Interesting) by hemocyanin on Saturday February 02 2019, @03:24AM (2 children)

      by hemocyanin (186) on Saturday February 02 2019, @03:24AM (#795297) Journal

      I wouldn't mind a little door the slides or swings out exposing a row of DIP switches, e.g: https://duckduckgo.com/?q=DIP+switch&t=lm&iax=images&ia=images [duckduckgo.com] . In some ways, I think that would be easier to use (and build) than a bunch of exposed switches.

      • (Score: 2) by Arik on Saturday February 02 2019, @03:38AM

        by Arik (4543) on Saturday February 02 2019, @03:38AM (#795304) Journal
        I can't say I wouldn't be willing to give it a try.
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      • (Score: 2) by Arik on Sunday February 03 2019, @01:58PM

        by Arik (4543) on Sunday February 03 2019, @01:58PM (#795678) Journal
        After thinking it over the only objection I can see is that it would not be possible to check the current state of the switches so easily. You would need to bring the phone into the open, remove the panel, possibly maneuver to get good light on it, to confirm the settings. With the sort of keys I was describing, you can check in an instant, without even taking the phone out of the pocket. This is a HUGE advantage.
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    • (Score: 3, Interesting) by takyon on Saturday February 02 2019, @03:58AM (6 children)

      by takyon (881) <reversethis-{gro ... s} {ta} {noykat}> on Saturday February 02 2019, @03:58AM (#795311) Journal

      TFA mentions switches for wireless, cameras, and speaker (I'm going to assume they meant the microphone). I don't know of any precedent for having the ability to physically disable all these on a smartphone, without doing some serious surgery on the device. Considering how tightly integrated SoCs are, the claim may need to be thoroughly fact checked.

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      • (Score: 3, Informative) by TheRaven on Saturday February 02 2019, @01:03PM (5 children)

        by TheRaven (270) on Saturday February 02 2019, @01:03PM (#795377) Journal
        Disabling the wireless typically means disconnecting the antenna. The WiFi chip may still be powered, but it can't communicate with anything. Similarly, disconnecting the camera is usually done by cutting the power line. The microphone is usually a single signal wire (plus return), so cutting that can turn it off. You don't need to disable anything in the SoC to render these components unusable.
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        • (Score: 2) by takyon on Saturday February 02 2019, @01:06PM (1 child)

          by takyon (881) <reversethis-{gro ... s} {ta} {noykat}> on Saturday February 02 2019, @01:06PM (#795378) Journal

          The point of the switch being that you can turn it back on!

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          • (Score: 0) by Anonymous Coward on Sunday February 03 2019, @05:53AM

            by Anonymous Coward on Sunday February 03 2019, @05:53AM (#795609)

            Sure you can 'turn it back on'.

            Get a hole punch, and put a hole in the right place and it will 'disable' the swipe to pay functionality. The antenna is literally disconnected.

            Turning it back on may involve a bit of work, but hey, you could install a dip switch while you're there. You know, for, next time.

            Or just buy one of those aluminium wallets.

        • (Score: 2) by Arik on Sunday February 03 2019, @12:19AM (2 children)

          by Arik (4543) on Sunday February 03 2019, @12:19AM (#795505) Journal
          "Disabling the wireless typically means disconnecting the antenna. The WiFi chip may still be powered, but it can't communicate with anything."

          Not true. The wifi on these things are hostile computers running their own blobs. If it's powered on, it can communicate with anything on the bus. It needs to be powered off and/or disconnected from the bus; preferably both.
          --
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          • (Score: 2) by FatPhil on Sunday February 03 2019, @06:26PM

            by FatPhil (863) <reversethis-{if.fdsa} {ta} {tnelyos-cp}> on Sunday February 03 2019, @06:26PM (#795751) Homepage
            The wifi (often combined wifi and bluetooth) cores typically communicate with the AP on their own dedicated bus. If the wifi core wants to do evil, the OS running on the AP has to also be evil enough to cooperate. And why the AP/radio wouldn't be a master/slave setup is a mystery - the wifi saying "i have data for you" when the wifi is supposed to be off should be reason for the driver to just disable that interrupt, and possibly power down the chip - it's clearly misbehaving.
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          • (Score: 2) by TheRaven on Tuesday February 05 2019, @06:17PM

            by TheRaven (270) on Tuesday February 05 2019, @06:17PM (#796805) Journal
            That depends a bit on the SoC. Often they communicate via a high-speed serial link, rather than the memory bus. On at least some iPhones, the radio controller can only address a small amount of physical memory, which the kernel uses for DMA buffers and keeps away from any sensitive information. A lot of recent ARM cores also support an IOMMU (which ARM calls a SMMU), which can be configured to dynamically limit the range of memory that the device can access, even if it's malicious / compromised.
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    • (Score: 0) by Anonymous Coward on Sunday February 03 2019, @05:45AM (1 child)

      by Anonymous Coward on Sunday February 03 2019, @05:45AM (#795604)

      I would pay extra to have this.
      I never use GPS. Ever. I never want the chip to be activated.

      Yet, if I open Google Maps it always turns the GPS on for a moment, captures my data, and sends it to Google. Forget making this type of action illegal. It should be impossible.

      I do not own or fully control the OS on my phone.

      • (Score: 0) by Anonymous Coward on Sunday February 03 2019, @06:58AM

        by Anonymous Coward on Sunday February 03 2019, @06:58AM (#795627)

        GPS does not hurt your privacy alone. The problem is when you have internet/cellular at the same time.

        Even without GPS, your location can be estimated with cellular, wifi, etc.

    • (Score: 2) by cosurgi on Wednesday February 06 2019, @10:40AM

      by cosurgi (272) on Wednesday February 06 2019, @10:40AM (#797116) Journal

      linux phone will never go berserk. Linus does all the berserking.

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