Thomas Pfeiffer

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  1. Like
    Thomas Pfeiffer reacted to martinayotte in Default W1 pin on Nano PI NEO   
    What is the output resulting from this command ?
    cat /proc/device-tree/soc/pinctrl@1c20800/w1_pins/allwinner\,pins What did you put in /boot/armbianEnv.txt to load the overlay ?
  2. Like
    Thomas Pfeiffer reacted to tkaiser in Random thoughts, opinions and well known facts about PCB and heatsinks   
    I really love your valuable comments. All the time. They're so great. Awesome. You should really try to get a job as CEO at one of those stupid Chinese companies. They need you.
    For all those people not thinking they're the only smart person on this planet: Check NEO heatsink here:
  3. Like
    Thomas Pfeiffer reacted to DrTune in Can we stop for a second and give credit due to the Armbian posse   
    Hey all,
    I've been using Allwinner boards for the last couple of years and Armbian+forums have made this a workable thing that I promote to my friends as being The Way To Go instead of being a big fat waste of time. 
    Igor + Tkaiser (and anyone else forgive me if I didn't give you a shout) - You fucking rock.  You really do; you've all provided amazing amounts of support for multiple kernels and userspaces and in the face of (at least) bullshit from the chip vendors, yet you are absolutely crucial to them being taken seriously.
    The work from Armbian has (for me) made the difference between BananaPi, OrangePi, etc all being an unusable washout of #ShitDidn'tWork, to being something I am excited to build into things and personally promote.
    Igor, Tkaiser; I've never met you but your work speaks for itself; you give a shit and you keep giving and shit and THANK YOU FOR THAT.
    I just donated you some $. If you're still reading this and you're using their work, you might think about doing same.   FWIW; what turned my head is seeing Igor and crew putting _years_ of work into this. 
    Anyway, much, much, much appreciated. From one to another; good job.
  4. Like
    Thomas Pfeiffer reacted to FergusL in NanoHat PCM5102A for Nano Pi NEO Air   
    I received NanoPi NEO and NEO Air boards along with the NanoHat PCM5102a that FriendlyArm is selling:
    It's a good quality audio stereo out addon board compatible with NEO and NEO Air.
    I got it working with Armbian on NEO Air!
    I adapted commits from FA's repo to match Armbian's tree and get that DAC working, (original commits here: 
    Add these to 'userpatches/kernel/sun8i-default`:
    Add this config to 'userpatches' to have the driver built-in:
    Then run './'
    The fex file also needs to be modified, you can use this one:
    This should be all that's needed!
    Test it with 'aplay /usr/share/sounds/alsa/Noise.wav'
    and install madplay if you want to try with mp3 files.
    Can I safely share the content of the /boot folder and expect it to work for user copy-pasting it to the /boot folder on their sdcard? It has the kernel and the fex which are the only files the process has modified.
    Obviously you'd still have to trust me
    I'm trying to turn this into a more straightforward way. Do I need to commit to modify defconfig and .fex file or is it supported in userpatches/ folder as well?
    There is one issue reported in syslog that doesn't seem to prevent it from working, here's the relevant part of the log:
    [ 1.598532] pcm5102a_probe [ 1.607823] asoc: snddaudio <-> pri_dai mapping ok [ 1.610531] ------------[ cut here ]------------ [ 1.610583] WARNING: at fs/sysfs/dir.c:508 sysfs_add_one+0x8c/0xac() [ 1.610604] sysfs: cannot create duplicate filename '/devices/platform/snddaudio' [ 1.610625] Modules linked in: [ 1.610694] [<c0016a20>] (unwind_backtrace+0x0/0xe8) from [<c0617cc0>] (dump_stack+0x20/0x24) [ 1.610742] [<c0617cc0>] (dump_stack+0x20/0x24) from [<c0029750>] (warn_slowpath_common+0x5c/0x74) [ 1.610788] [<c0029750>] (warn_slowpath_common+0x5c/0x74) from [<c00297a8>] (warn_slowpath_fmt+0x40/0x48) [ 1.610833] [<c00297a8>] (warn_slowpath_fmt+0x40/0x48) from [<c017aab8>] (sysfs_add_one+0x8c/0xac) [ 1.610877] [<c017aab8>] (sysfs_add_one+0x8c/0xac) from [<c017acb8>] (create_dir+0x70/0xc4) [ 1.610917] [<c017acb8>] (create_dir+0x70/0xc4) from [<c017b0bc>] (sysfs_create_dir+0xc4/0xe4) [ 1.610965] [<c017b0bc>] (sysfs_create_dir+0xc4/0xe4) from [<c0306bf0>] (kobject_add_internal+0xdc/0x1d0) [ 1.611013] [<c0306bf0>] (kobject_add_internal+0xdc/0x1d0) from [<c0306ef8>] (kobject_add+0x78/0x90) [ 1.611064] [<c0306ef8>] (kobject_add+0x78/0x90) from [<c03b0078>] (device_add+0xf8/0x578) [ 1.611114] [<c03b0078>] (device_add+0xf8/0x578) from [<c03b4208>] (platform_device_add+0x110/0x16c) [ 1.611161] [<c03b4208>] (platform_device_add+0x110/0x16c) from [<c03b47a4>] (platform_device_register+0x30/0x34) [ 1.611214] [<c03b47a4>] (platform_device_register+0x30/0x34) from [<c08f6f94>] (sunxi_snddaudio0_init+0x54/0xa4) [ 1.611263] [<c08f6f94>] (sunxi_snddaudio0_init+0x54/0xa4) from [<c000867c>] (do_one_initcall+0xa8/0x164) [ 1.611313] [<c000867c>] (do_one_initcall+0xa8/0x164) from [<c08d1a74>] (kernel_init+0x168/0x254) [ 1.611364] [<c08d1a74>] (kernel_init+0x168/0x254) from [<c000f1b0>] (kernel_thread_exit+0x0/0x8) [ 1.611455] ---[ end trace bd16a9742f20e8dd ]--- [ 1.611481] ------------[ cut here ]------------ [ 1.611509] WARNING: at lib/kobject.c:198 kobject_add_internal+0x180/0x1d0() [ 1.611533] kobject_add_internal failed for snddaudio with -EEXIST, don't try to register things with the same name in the same directory. [ 1.611560] Modules linked in: [ 1.611601] [<c0016a20>] (unwind_backtrace+0x0/0xe8) from [<c0617cc0>] (dump_stack+0x20/0x24) [ 1.611644] [<c0617cc0>] (dump_stack+0x20/0x24) from [<c0029750>] (warn_slowpath_common+0x5c/0x74) [ 1.611686] [<c0029750>] (warn_slowpath_common+0x5c/0x74) from [<c00297a8>] (warn_slowpath_fmt+0x40/0x48) [ 1.611732] [<c00297a8>] (warn_slowpath_fmt+0x40/0x48) from [<c0306c94>] (kobject_add_internal+0x180/0x1d0) [ 1.611778] [<c0306c94>] (kobject_add_internal+0x180/0x1d0) from [<c0306ef8>] (kobject_add+0x78/0x90) [ 1.611825] [<c0306ef8>] (kobject_add+0x78/0x90) from [<c03b0078>] (device_add+0xf8/0x578) [ 1.611870] [<c03b0078>] (device_add+0xf8/0x578) from [<c03b4208>] (platform_device_add+0x110/0x16c) [ 1.611915] [<c03b4208>] (platform_device_add+0x110/0x16c) from [<c03b47a4>] (platform_device_register+0x30/0x34) [ 1.611962] [<c03b47a4>] (platform_device_register+0x30/0x34) from [<c08f6f94>] (sunxi_snddaudio0_init+0x54/0xa4) [ 1.612007] [<c08f6f94>] (sunxi_snddaudio0_init+0x54/0xa4) from [<c000867c>] (do_one_initcall+0xa8/0x164) [ 1.612052] [<c000867c>] (do_one_initcall+0xa8/0x164) from [<c08d1a74>] (kernel_init+0x168/0x254) [ 1.612098] [<c08d1a74>] (kernel_init+0x168/0x254) from [<c000f1b0>] (kernel_thread_exit+0x0/0x8) [ 1.612125] ---[ end trace bd16a9742f20e8de ]--- Any hint? The codec still works fine. There is no control in alsamixer.
    Thanks to @tkaiser and @Igor for their help on IRC.
  5. Like
    Thomas Pfeiffer got a reaction from Theoretiker in NanoPI Neo V1 doesn't burn the 1A Fuse?   
    Have you already measured the current with an amperemeter? 
    This should give you some hints on the fuse to use.