Instead of modifying the service file provided by the distro, use drop-in functionaly to explicitly specify the policy.
		
			
				
	
	
		
			146 lines
		
	
	
		
			7.0 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			146 lines
		
	
	
		
			7.0 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
# Frequently Asked Build Questions
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This page covers questions about building QMK. If you haven't yet done so, you should read the [Build Environment Setup](getting_started_build_tools.md) and [Make Instructions](getting_started_make_guide.md) guides.
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## Can't Program on Linux
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You will need proper permissions to operate a device. For Linux users, see the instructions regarding `udev` rules, below. If you have issues with `udev`, a work-around is to use the `sudo` command. If you are not familiar with this command, check its manual with `man sudo` or [see this webpage](https://linux.die.net/man/8/sudo).
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An example of using `sudo`, when your controller is ATMega32u4:
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    $ sudo dfu-programmer atmega32u4 erase --force
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    $ sudo dfu-programmer atmega32u4 flash your.hex
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    $ sudo dfu-programmer atmega32u4 reset
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or just:
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    $ sudo make <keyboard>:<keymap>:dfu
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Note that running `make` with `sudo` is generally ***not*** a good idea, and you should use one of the former methods, if possible.
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### Linux `udev` Rules
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On Linux, you'll need proper privileges to access the MCU. You can either use
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`sudo` when flashing firmware, or place these files in `/etc/udev/rules.d/`. Once added run the following:
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```console
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sudo udevadm control --reload-rules
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sudo udevadm trigger
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```
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**/etc/udev/rules.d/50-atmel-dfu.rules:**
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```
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# Atmel ATMega32U4
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SUBSYSTEMS=="usb", ATTRS{idVendor}=="03eb", ATTRS{idProduct}=="2ff4", TAG+="uaccess", RUN{builtin}+="uaccess"
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# Atmel USBKEY AT90USB1287
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SUBSYSTEMS=="usb", ATTRS{idVendor}=="03eb", ATTRS{idProduct}=="2ffb", TAG+="uaccess", RUN{builtin}+="uaccess"
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# Atmel ATMega32U2
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SUBSYSTEMS=="usb", ATTRS{idVendor}=="03eb", ATTRS{idProduct}=="2ff0", TAG+="uaccess", RUN{builtin}+="uaccess"
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```
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**/etc/udev/rules.d/54-input-club-keyboard.rules:**
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```
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# Input Club keyboard bootloader
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SUBSYSTEMS=="usb", ATTRS{idVendor}=="1c11", ATTRS{idProduct}=="b007", TAG+="uaccess", RUN{builtin}+="uaccess"
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```
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**/etc/udev/rules.d/55-caterina.rules:**
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```
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# ModemManager should ignore the following devices
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SUBSYSTEMS=="usb", ATTRS{idVendor}=="2a03", ATTRS{idProduct}=="0036", TAG+="uaccess", RUN{builtin}+="uaccess", ENV{ID_MM_DEVICE_IGNORE}="1"
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SUBSYSTEMS=="usb", ATTRS{idVendor}=="2341", ATTRS{idProduct}=="0036", TAG+="uaccess", RUN{builtin}+="uaccess", ENV{ID_MM_DEVICE_IGNORE}="1"
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SUBSYSTEMS=="usb", ATTRS{idVendor}=="1b4f", ATTRS{idProduct}=="9205", TAG+="uaccess", RUN{builtin}+="uaccess", ENV{ID_MM_DEVICE_IGNORE}="1"
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SUBSYSTEMS=="usb", ATTRS{idVendor}=="1b4f", ATTRS{idProduct}=="9203", TAG+="uaccess", RUN{builtin}+="uaccess", ENV{ID_MM_DEVICE_IGNORE}="1"
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```
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**Note:** With older (before 1.12) ModemManager, filtering only works when not in strict mode, the following commands can update that settings:
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```console
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printf '[Service]\nExecStart=\nExecStart=/usr/sbin/ModemManager --filter-policy=default' | sudo tee /etc/systemd/system/ModemManager.service.d/policy.conf
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sudo systemctl daemon-reload
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sudo systemctl restart ModemManager
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```
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**/etc/udev/rules.d/56-dfu-util.rules:**
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```
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# stm32duino
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SUBSYSTEMS=="usb", ATTRS{idVendor}=="1eaf", ATTRS{idProduct}=="0003", TAG+="uaccess", RUN{builtin}+="uaccess"
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# Generic stm32
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SUBSYSTEMS=="usb", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="df11", TAG+="uaccess", RUN{builtin}+="uaccess"
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```
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**/etc/udev/rules.d/57-bootloadhid.rules:**
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```
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# bootloadHID
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SUBSYSTEMS=="usb", ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="05df", TAG+="uaccess", RUN{builtin}+="uaccess"
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```
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### Serial device is not detected in bootloader mode on Linux
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Make sure your kernel has appropriate support for your device. If your device uses USB ACM, such as
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Pro Micro (Atmega32u4), make sure to include `CONFIG_USB_ACM=y`. Other devices may require `USB_SERIAL` and any of its sub options.
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## Unknown Device for DFU Bootloader
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Issues encountered when flashing keyboards on Windows are most often due to having the wrong drivers installed for the bootloader, or none at all.
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Re-running the QMK installation script (`./util/qmk_install.sh` from the `qmk_firmware` directory in MSYS2 or WSL) or reinstalling the QMK Toolbox may fix the issue. Alternatively, you can download and run the [`qmk_driver_installer`](https://github.com/qmk/qmk_driver_installer) package manually.
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If that doesn't work, then you may need to download and run Zadig. See [Bootloader Driver Installation with Zadig](driver_installation_zadig.md) for more detailed information.
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## USB VID and PID
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You can use any ID you want with editing `config.h`. Using any presumably unused ID will be no problem in fact except for very low chance of collision with other product.
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Most boards in QMK use `0xFEED` as the vendor ID. You should look through other keyboards to make sure you pick a unique Product ID.
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Also see this.
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https://github.com/tmk/tmk_keyboard/issues/150
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You can buy a really unique VID:PID here. I don't think you need this for personal use.
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- http://www.obdev.at/products/vusb/license.html
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- http://www.mcselec.com/index.php?page=shop.product_details&flypage=shop.flypage&product_id=92&option=com_phpshop&Itemid=1
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## BOOTLOADER_SIZE for AVR
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Note that Teensy2.0++ bootloader size is 2048byte. Some Makefiles may have wrong comment.
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```
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# Boot Section Size in *bytes*
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#   Teensy halfKay   512
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#   Teensy++ halfKay 2048
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#   Atmel DFU loader 4096       (TMK Alt Controller)
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#   LUFA bootloader  4096
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#   USBaspLoader     2048
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OPT_DEFS += -DBOOTLOADER_SIZE=2048
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```
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## `avr-gcc: internal compiler error: Abort trap: 6 (program cc1)` on MacOS
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This is an issue with updating on brew, causing symlinks that avr-gcc depend on getting mangled.
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The solution is to remove and reinstall all affected modules.
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```
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brew rm avr-gcc avr-gcc@8 dfu-programmer dfu-util gcc-arm-none-eabi arm-gcc-bin@8 avrdude qmk
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brew install qmk/qmk/qmk
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brew link --force avr-gcc@8
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brew link --force arm-gcc-bin@8
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```
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### `avr-gcc` and LUFA
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If you updated your `avr-gcc` and you see errors involving LUFA, for example:
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`lib/lufa/LUFA/Drivers/USB/Class/Device/AudioClassDevice.h:380:5: error: 'const' attribute on function returning 'void'`
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For now, you need to rollback `avr-gcc` to 8 in Homebrew.
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```
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brew uninstall --force avr-gcc
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brew install avr-gcc@8
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brew link --force avr-gcc@8
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```
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### I just flashed my keyboard and it does nothing/keypresses don't register - it's also ARM (rev6 planck, clueboard 60, hs60v2, etc...) (Feb 2019)
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Due to how EEPROM works on ARM based chips, saved settings may no longer be valid.  This affects the default layers, and *may*, under certain circumstances we are still figuring out, make the keyboard unusable.  Resetting the EEPROM will correct this.
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[Planck rev6 reset EEPROM](https://cdn.discordapp.com/attachments/473506116718952450/539284620861243409/planck_rev6_default.bin) can be used to force an eeprom reset. After flashing this image, flash your normal firmware again which should restore your keyboard to _normal_ working order.
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[Preonic rev3 reset EEPROM](https://cdn.discordapp.com/attachments/473506116718952450/537849497313738762/preonic_rev3_default.bin)
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If bootmagic is enabled in any form, you should be able to do this too (see [Bootmagic docs](feature_bootmagic.md) and keyboard info for specifics on how to do this).
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