Differences

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--- arduino:arduino_on_linux [2019/12/28 20:18] – [Serial port permissions] mithat
+++ arduino:arduino_on_linux [2019/12/29 05:36] – [USBtiny permissions] mithat
@@ Line 11: / Line 11: @@
 </code>
-==== USBtiny permissions ====
+==== USBtiny/USBtinyISP permissions ====
-If you plan to use a USBtiny to program your Arduino instead of the more conventional approaches, you are likely to encounter a different permission error. On my Debian sid system, I encountered a “Warning: cannot open USB device: Permission denied” error that adding my user to the ''dialout'' group didn't fix.
+If you plan to use a USBtiny or USBtinyISP to program your Arduino instead of the more conventional approaches, you are likely to encounter a different permission error. On my Debian sid system, I encountered a “Warning: cannot open USB device: Permission denied” error that adding my user to the ''dialout'' group didn't fix.
-I was able to clear it by adding the suggestion at the end of this [[https://learn.adafruit.com/usbtinyisp/avrdude|Adafruit page]].
+I was able to clear it by adding the suggestion at the end of this [[https://learn.adafruit.com/usbtinyisp/avrdude|Adafruit page]]. Specifically, as root create a file ''/etc/udev/rules.d/99-USBtiny.rules'' with the following single line:
-Specifically, as root create a file ''/etc/udev/rules.d/99-USBtiny.rules'' with the following single line:
 <code>
 SUBSYSTEM=="usb", ATTR{product}=="USBtiny", ATTR{idProduct}=="0c9f", ATTRS{idVendor}=="1781", MODE="0660", GROUP="dialout"
 </code>
-The next time you log in, your USBtiny //should// work as expected --- unless the ''product'', ''idProduct'', and/or ''idVendor'' attributes aren't as expected. You can confirm these values by plugging in your USBtiny and running ''dmesg'' (as root):
+The next time you log in, your programmer //should// work as expected --- unless the ''product'', ''idProduct'', and/or ''idVendor'' attributes aren't as expected. You can confirm their values by plugging in your USBtiny and running ''dmesg'' (as root):
 <code>
 # dmesg
@@ Line 29: / Line 27: @@
 </code>
-A USBtiny from a different vendor I tried identified itself as “USBtinyISP” rather than “USBtiny”, and so the udev rule above didn’t work. The solution was to add an additional rule in a second line to ''/etc/udev/rules.d/99-USBtiny.rules'':
+A USBtinyISP from a different vendor I used identified itself as “USBtinyISP” rather than “USBtiny”, and so the udev rule above didn’t work. The solution was to add an additional rule in a second line to ''/etc/udev/rules.d/99-USBtiny.rules'':
 <code>
 SUBSYSTEM=="usb", ATTR{product}=="USBtiny", ATTR{idProduct}=="0c9f", ATTRS{idVendor}=="1781", MODE="0660", GROUP="dialout"