Leonardo doesn't appearing as CDC-ACM device

[jotabr]

After plugging Leonardo to USB port, /dev/ttyACM0 is created normally by bootloader:

$ ls /dev/ttyACM*
/dev/ttyACM0

$ lsusb | grep Ard
Bus 003 Device 113: ID 2341:0036 Arduino SA

After bootloader has finished execution, there is no CDC ACM device available and it is not possible to upload any sketch:

$ ls /dev/ttyACM*
ls: cannot access /dev/ttyACM*: No such file or directory

$ lsusb | grep Ard
Bus 003 Device 110: ID 2341:8036 Arduino SA Leonardo (CDC ACM, HID)

If I reset Leonardo I have ACM back and some seconds for uploading a sketch.

Maybe it is related to this issue? -> https://groups.google.com/forum/?fromgroups=#!topic/lufa-support/kKuFY8HGgWc

I'm currently running RHEL 6.4 - Linux 2.6.32-358.2.1.el6.x86_64

Regards

Jota

[jantje]

I experience the exact same problem on the exact same OS.
I have been looking for a solution but I havn't found anything yet.

[lestofante]

What's the output of dmesg?
Il giorno 29/apr/2013 00:49, "jantje" notifications@github.com ha scritto:

I experience the exact same problem on the exact same OS.
I have been looking for a solution but I havn't found anything yet.

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Reply to this email directly or view it on GitHubhttps://github.com//issues/1389#issuecomment-17144445
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[jotabr]

usb 3-2: new full speed USB device number 56 using xhci_hcd
usb 3-2: New USB device found, idVendor=2341, idProduct=0036
usb 3-2: New USB device strings: Mfr=2, Product=1, SerialNumber=0
usb 3-2: Product: Arduino Leonardo
usb 3-2: Manufacturer: Arduino LLC
usb 3-2: configuration #1 chosen from 1 choice
usb 3-2: ep 0x82 - rounding interval to 1024 microframes, ep desc says 2040 microframes
cdc_acm 3-2:1.0: ttyACM0: USB ACM device
usb 3-2: USB disconnect, device number 56
usb 3-2: new full speed USB device number 57 using xhci_hcd
usb 3-2: New USB device found, idVendor=2341, idProduct=8036
usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 3-2: Product: Arduino Leonardo
usb 3-2: Manufacturer: Arduino LLC
usb 3-2: configuration #1 chosen from 1 choice
input: Arduino LLC Arduino Leonardo as /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.2/input/input38
generic-usb 0003:2341:8036.001B: input,hidraw3: USB HID v1.01 Mouse [Arduino LLC Arduino Leonardo] on usb-0000:00:14.0-2/input2

[lestofante]

Seems ok, it is just it is enumerated differently. Go on the main site ->
getting started -> linux -> the hard way. You will find instructoon for
creating a udev rule.

usb 3-2: new full speed USB device number 56 using xhci_hcd
usb 3-2: New USB device found, idVendor=2341, idProduct=0036
usb 3-2: New USB device strings: Mfr=2, Product=1, SerialNumber=0
usb 3-2: Product: Arduino Leonardo
usb 3-2: Manufacturer: Arduino LLC
usb 3-2: configuration #1
https://github.com/arduino/Arduino/issues/1chosen from 1 choice
usb 3-2: ep 0x82 - rounding interval to 1024 microframes, ep desc says 2040
microframes
cdc_acm 3-2:1.0: ttyACM0: USB ACM device
usb 3-2: USB disconnect, device number 56
usb 3-2: new full speed USB device number 57 using xhci_hcd
usb 3-2: New USB device found, idVendor=2341, idProduct=8036
usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 3-2: Product: Arduino Leonardo
usb 3-2: Manufacturer: Arduino LLC
usb 3-2: configuration #1
https://github.com/arduino/Arduino/issues/1chosen from 1 choice
input: Arduino LLC Arduino Leonardo as
/devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.2/input/input38
generic-usb 0003:2341:8036.001B: input,hidraw3: USB HID v1.01 Mouse
[Arduino LLC Arduino Leonardo] on usb-0000:00:14.0-2/input2

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[jotabr]

Following website instructions, I get the following:

• While bootloader is running:
  $ ls -l /dev/ttyA*
  crw-rw-rw-. 1 root dialout 166, 0 Apr 29 09:00 /dev/ttyACM0
  lrwxrwxrwx. 1 root root 15 Apr 29 09:00 /dev/ttyACM1 -> bus/usb/003/084
• While sketch is running:
  $ ls -l /dev/ttyA*
  lrwxrwxrwx. 1 root root 15 Apr 29 09:00 /dev/ttyACM1 -> bus/usb/003/085
  lrwxrwxrwx. 1 root root 13 Apr 29 09:00 /dev/ttyACM15 -> input/event15
  lrwxrwxrwx. 1 root root 7 Apr 29 09:00 /dev/ttyACM3 -> hidraw3
  lrwxrwxrwx. 1 root root 12 Apr 29 09:00 /dev/ttyACM4 -> input/mouse4

Same as before, but now I get new dev links.

[lestofante]

Sorry, missed that before:
from DMESG: USB HID v1.01 Mouse [Arduino LLC Arduino Leonardo] on
usb-0000:00:14.0-2/input2
and from your ls -l /dev/ttyA*: /dev/ttyACM4 -> input/mouse4

so it seems like you have uploaded some come to show your leonardo as
mouse...

2013/4/29 jotabr notifications@github.com

Following website instructions, I get the following:

While bootloader is running:
$ ls -l /dev/ttyA*
crw-rw-rw-. 1 root dialout 166, 0 Apr 29 09:00 /dev/ttyACM0
lrwxrwxrwx. 1 root root 15 Apr 29 09:00 /dev/ttyACM1 -> bus/usb/003/084

While sketch is running:
$ ls -l /dev/ttyA*
lrwxrwxrwx. 1 root root 15 Apr 29 09:00 /dev/ttyACM1 -> bus/usb/003/085
lrwxrwxrwx. 1 root root 13 Apr 29 09:00 /dev/ttyACM15 -> input/event15
lrwxrwxrwx. 1 root root 7 Apr 29 09:00 /dev/ttyACM3 -> hidraw3
lrwxrwxrwx. 1 root root 12 Apr 29 09:00 /dev/ttyACM4 -> input/mouse4

Same as before, but now I get new dev links.

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Reply to this email directly or view it on GitHubhttps://github.com//issues/1389#issuecomment-17162761
.

[jotabr]

No. It's just the blink sketch, from examples folder. ^^
And, Yes, if I use any of keyboard or mouse functions, it does work.
But Serial / CDC ACM? No way.

[toddkrein]

The problem is that the VID:PID of the running sketch isn't in list of cdc_acm modules in cdc_acm.c in older versions of the driver. (Ubuntu 13.04 works, but it's the only one I've found.)

As a hack, this should work:

echo "0x1b4f 0x9204" > /sys/bus/usb/drivers/cdc_acm/new_id

[facchinm]

Solved by newer kernel versions