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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. Hector Martin‏ @marcan42 24 Jan 2019
      • Report Tweet
      • Report NetzDG Violation

      Apparently the Raspberry Pi camera has a DRM chip in it to stop anyone else from designing or producing third party cameras. https://www.raspberrypi.org/forums/viewtopic.php?t=149426 … WTF‽ I think I'm going to start calling it the Raspberry iPi. Why the hell is this garbage in an *educational* product?

      12 replies 94 retweets 251 likes
      Show this thread
    2. Luke Wren‏ @wren6991 24 Jan 2019
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      Replying to @marcan42

      Luke Wren Retweeted Eben Upton

      Eben, the CEO, has responded to this: https://mobile.twitter.com/EbenUpton/status/1088440503622909952 … I don't think your statement is true at all: "has a DRM chip in it to stop anyone else from designing or producing third party cameras" But perhaps that's what happens when you stir outrage over a 2yo forum post

      Luke Wren added,

      Eben Upton @EbenUpton
      Replying to @embedded_iot @abxlabs and 6 others
      You are confused. You can plug any CSI camera into the Raspberry Pi. There's even a kernel driver for the CSI receiver, which we paid for (https://patchwork.kernel.org/patch/9951525/ ). What you can't do is clone the official v2 camera module and use the default ISP tuning, which we also paid for.
      1 reply 1 retweet 6 likes
    3. Hector Martin‏ @marcan42 24 Jan 2019
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      Replying to @wren6991

      It certainly stops anyone else from designing/producing third party modules based on the same Sony sensor as the official V2 camera and getting the same performance/features out of it. Which is still stupid. Well, it used to, since I just tweeted the "secret" HMAC key.

      2 replies 2 retweets 22 likes
    4. Luke Wren‏ @wren6991 24 Jan 2019
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      Replying to @marcan42

      Maybe it would be more useful to reverse the ISP configuration code rather than the HMAC key. Seems more in the spirit of open hardware

      1 reply 0 retweets 2 likes
    5. Luke Wren‏ @wren6991 24 Jan 2019
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      Replying to @wren6991 @marcan42

      And on a less baity note ;) pi has exposed the option to bypass the ISP to userland, so if there is any FOSS implementation of an ISP, it might be fun to drop that in instead. https://www.raspberrypi.org/forums/viewtopic.php?t=175711 …

      1 reply 0 retweets 2 likes
      Hector Martin‏ @marcan42 24 Jan 2019
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      Replying to @wren6991

      Sure, but then for starters you don't get to use the VideoCore so you have to do all your own processing on the ARM, consuming more resources. There's just no reasonable way to get the same features without their blob that requires their chip (since Broadcom won't open VideoCore)

      7:09 PM - 24 Jan 2019
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      • 7 Likes
      • Natanael, tech janitor sww1235 Neko May Pascal Ernster 🏳️‍🌈🇪🇺🇱🇺 Boomba Real AI ‏pix
      0 replies 1 retweet 7 likes

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