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Linux Mastering Development

Persistent name for USB HID (LED) gadget

I have a USB LED gadget that shows up as a USB HID device. When I plug it in to my server it shows up as /sys/class/leds/delcom2:{red,green,blue} and I can operate it by manipulating the files that show up there. lrwxrwxrwx 1 root root 0 Apr 7 13:22 /sys/class/leds/delcom2:blue -> ../../devices/pci0000:00/0000:00:1d.2/usb8/8-1/8-1:1.0/0003:0FC5:B080.0007/leds/delcom2:blue lrwxrwxrwx 1 root root […]

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Linux Mastering Development

Bluetooth BCM20702A1 timeout

I’m trying to get a USB Bluetooth device working, its a BCM20702A1 and initially on plugging it in it wasn’t detected… [ 5527.699357] usb 1-9: Product: BCM20702A0 [ 5527.699358] usb 1-9: Manufacturer: Broadcom Corp [ 5527.699358] usb 1-9: SerialNumber: 5CF370993818 [ 5527.736234] Bluetooth: Core ver 2.22 [ 5527.736244] NET: Registered protocol family 31 [ 5527.736245] […]

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Linux Mastering Development

Bluetooth USB adapter setup

I just bought a no-name BT 5.0 USB adapter and want to get started with it on my fedora 31 system. When I attach the device: $ dmesg … [ 2540.229893] Bluetooth: Core ver 2.22 [ 2540.229947] NET: Registered protocol family 31 [ 2540.229948] Bluetooth: HCI device and connection manager initialized [ 2540.229951] Bluetooth: HCI […]

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Linux Mastering Development Ubuntu

Using DSLR camera as a webcam

I am trying to use my Canon DSLR as a webcam, on an Ubuntu machine. The camera does not show up as /dev/video*. The camera shows up in hwinfo –usb: 19: USB 00.0: 10f01 WebCam [Created at usb.122] Unique ID: R8DB._ROX1vreGqF Parent ID: FKGF.4Nx_qoDfSd7 SysFS ID: /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1/2-1.1:1.0 SysFS BusID: 2-1.1:1.0 Hardware Class: camera Model: “Canon […]

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Linux Mastering Development

Beaglebone Black, Displaylink USB, Mimo UM-1080C-G

good day all! I’m somewhat of a noob, in the Xorg arena, so i apologize in advance for the extra handholding. been banging my head for a week or two trying to get LXDE to output to my MIMO 1080C-G. it appears that the frambuffer is there, and that its “trying” but it never dose […]

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Linux Mastering Development

Force PS3 clone arcade gamepad to be hid generic

I have a NETWAY GAMING ARCADE FIGHTER PS3/PC. This device works fine under windows and also does on recalbox 4.1, but does not in any current linux that I have tried. I have tried to recompile hid-sony with various older versions, including the very same that works on recalbox 4.1 (v4.4.13). When using that version […]

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Linux Mastering Development Ubuntu

Ubuntu Studio running slow after some months

I am a Ubuntu Studio user and general Linux novice. I installed the latest Ubuntu Studio on my Dell Vostro 400 Q6600 quad-core, and it ran perfectly for many months. Now it’s unusable. When I boot up, even opening the file manager takes a few minutes. Opening a program takes forever. It seems to get […]

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User Help

Backporting HID driver keyboard support

Long time linux user, but never gone to this level before, so forgive my naivete. On CentOS 7 (kernel 3.10) and I have a recent Apple keyboard. Not all keys behave appropriately, namely the Fn key does not modify keys at all. dmesg tells me information about the keyboard, and that it’s unfortunately using the […]

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Linux Mastering Development Ubuntu

Why is Libreoffice crashing my whole system?

I am running Kubuntu 18.04.4 LTS. When I use Libreoffice (currently 6.0.7.3) Writer, it frequently crashes my whole system. The display freezes for about a minute and after that, I get back to the login screen to start a new session. I can’t reproduce it, but I can say that it has always happened while […]

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Linux Mastering Development Ubuntu

Mouse not working after suspend, Ubuntu 18.04

was hoping someone here could point me in the right direction. I see similar questions asked on this forum but none seems to match my issue. I have a (Acer) laptop with Ubuntu 18.04 (Mint 19 to be accurate). I like to use a Logitech wireless mouse with it. As of recently, the mouse doesn’t […]