Re: [Paparazzi-devel] anyone else having problem with ftdi FT2232H on oneiric?

[Felix Ruess]

Hi again,

just in case anyone else is having this problem, it will probably be fixed soon. It looks like there are some bugfixes for ftdi_sio in 3.0.19 stable which will hopefully get into the ubuntu kernel releases soon:

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/926309

I tried with the 3.0.20 mainline kernel and my ftdi stuff was working perfectly again (so far at least).

So if you are affected by this bug, in the meantime just install 3.0.20 (3.0.19 probably fine as well):

http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.0.20-oneiric/

https://wiki.ubuntu.com/Kernel/MainlineBuilds

Cheers, Felix

On Sat, Feb 11, 2012 at 10:20 PM, Felix Ruess <address@hidden> wrote:

Hi all,

is anyone else having problems with the FTDI FT2232H on oneiric?

I often don't get anything on the tty for the FLOSS-JTAG serial connection.

It works right after a reboot, but after unplugging, replugging twice I don't get anything anymore.

It might be coincidence that it doesn't work after replugging twice, but it seems to work if I get a device number lower than 8.

[186861.361114] usb 1-1.1: new high speed USB device number 8 using ehci_hcd

[186861.461305] ftdi_sio 1-1.1:1.0: FTDI USB Serial Device converter detected

[186861.461398] usb 1-1.1: Detected FT2232H

[186861.461406] usb 1-1.1: Number of endpoints 2

[186861.461413] usb 1-1.1: Endpoint 1 MaxPacketSize 512

[186861.461419] usb 1-1.1: Endpoint 2 MaxPacketSize 512

[186861.461426] usb 1-1.1: Setting MaxPacketSize 512

[186861.461823] usb 1-1.1: FTDI USB Serial Device converter now attached to ttyUSB0

[186861.463264] ftdi_sio 1-1.1:1.1: FTDI USB Serial Device converter detected

[186861.463346] usb 1-1.1: Detected FT2232H

[186861.463353] usb 1-1.1: Number of endpoints 2

[186861.463360] usb 1-1.1: Endpoint 1 MaxPacketSize 512

[186861.463366] usb 1-1.1: Endpoint 2 MaxPacketSize 512

[186861.463372] usb 1-1.1: Setting MaxPacketSize 512

[186861.463753] usb 1-1.1: FTDI USB Serial Device converter now attached to ttyUSB1

It is definitely not a paparazzi issue, I can't even get anything with cat or minicom...

It also always works on my netbook (still on natty). And my xbee with FT232RL usb<->serial converter runs fine (on natty and oneiric).

Udev loads the driver, creates the devices (and custom symlinks I added) just fine.

So it probably is issue with the driver... but unloading ftdi_sio doesn't help either.

It seems they fixed some FTDI issues in 3.0.0-15.25: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/897514

But it didn't solve my issues...

Tested kernel versions: 3.0.0-15-generic and 3.0.0-16-generic on 64bit

Did anyone have the same problem? Any ideas?

Cheers, Felix