I have an Arduino Uno that is recognized by lsusb and is given the device name /dev/ttyACM0, as recognized by the Arduino IDE. I am added to the uucp group. Despite this, Processing will not show any available serial ports, nor will it communicate with the arduino if I tell it to use /dev/ttyACM0.
I have the ambient light code/setup detailed
here working perfectly in Windows, and the same code will not run under Arch linux. I have installed the packages libxtst 1.2.1-1, lib32-libxtst 1.2.1-1, and the AUR versions of (Oracle) jre 7u3-1, jdk 7u3-1, arduino 1.0, and processing 1.5.1.
Code:
[susie@luka ~]$ groups susie
uucp video audio users
Code:
[susie@luka ~]$ sudo lsusb -s 005:002 -v
Bus 005 Device 002: ID 2341:0001
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 2 Communications
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x2341
idProduct 0x0001
bcdDevice 0.01
iManufacturer 1 Arduino (www.arduino.cc)
iProduct 2 Arduino Uno
iSerial 220 64934333235351218242
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 62
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
Self Powered
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 2 Communications
bInterfaceSubClass 2 Abstract (modem)
bInterfaceProtocol 1 AT-commands (v.25ter)
iInterface 0
CDC Header:
bcdCDC 10.01
CDC ACM:
bmCapabilities 0x06
sends break
line coding and serial state
CDC Union:
bMasterInterface 0
bSlaveInterface 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 255
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 10 CDC Data
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x04 EP 4 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Device Status: 0x0000
(Bus Powered)
Code:
[susie@luka ~]$ stat /dev/ttyACM0
File: ‘/dev/ttyACM0’
Size: 0 Blocks: 0 IO Block: 4096 character special file
Device: 5h/5d Inode: 5627 Links: 1 Device type: a6,0
Access: (0660/crw-rw----) Uid: ( 0/ root) Gid: ( 14/ uucp)
Access: 2012-04-07 20:58:52.497971334 -0400
Modify: 2012-04-07 21:11:51.354636461 -0400
Change: 2012-04-07 21:34:05.677967159 -0400
Birth: -
Processing code:
Code:
import processing.serial.*;
// The serial port
Serial myPort;
// List all the available serial ports
println("Available serial ports:");
println(Serial.list());
Processing output:
Code:
[susie@luka ~]$
Available serial ports:
WARNING: RXTX Version mismatch
Jar version = RXTX-2.2pre1
native lib Version = RXTX-2.2pre2
Any insight or suggestions are appreciated.
