Now try disconnecting and reconnecting the USB cable. Now that the ftdi_sio module is loaded, (re-)connecting the cable will hopefully prompt udev to create the ttyUSB devices for you. After disconnecting, reconnecting, and waiting for a couple of seconds, try "dmesg | grep -i ftdi" again.
Dave On Dec 6, 2012, at 11:36 AM, Nimish Sane wrote: > Ok. So now, dmesg | grep -i ftdi shows the following: > > drivers/usb/serial/usb-serial.c: USB Serial support registered for FTDI USB > Serial Device > usbcore: registered new driver ftdi_sio > drivers/usb/serial/ftdi_sio.c: v1.4.3:USB FTDI Serial Converters Driver > > > Nimish > > On Thu, Dec 6, 2012 at 2:28 PM, David MacMahon <[email protected]> > wrote: > OK, the fact that the modprobe command showed nothing means that it > succeeded, so try running "dmesg | grep -i ftdi" again. > > Dave > > On Dec 6, 2012, at 11:20 AM, Nimish Sane wrote: > > > Hi Dave, > > > > All of these show nothing. > > > > I just checked and see that there is an LED near the FTDI USB port (named > > USB OK) that is ON (Red) on the board. Do you know what is that suppose to > > indicate? > > > > Thanks, > > > > Nimish > > > > On Thu, Dec 6, 2012 at 2:14 PM, David MacMahon <[email protected]> > > wrote: > > Hi, Nimish, > > > > What does "dmesg | grep -i ftdi" show? > > > > Does "lsmod | grep ftdi_sio" show anything? If not, try "modprobe > > ftdi_sio". > > > > Dave > > > > On Dec 6, 2012, at 10:53 AM, Nimish Sane wrote: > > > > > Hi Dave, > > > > > > I can see it as a usb device /dev/usbdev* (8 devices actually) but not as > > > tty* that I can use. Does one need to install some drivers for this FTDI > > > component? > > > > > > Thanks, > > > > > > Nimish > > > > > > On Thu, Dec 6, 2012 at 12:20 PM, David MacMahon > > > <[email protected]> wrote: > > > Hi, Nimish, > > > > > > I think you can find the information in the output of dmesg as (or after) > > > you connect the USB cable. It might also be in /var/log/messages. > > > > > > Dave > > > > > > On Dec 6, 2012, at 9:04 AM, Nimish Sane wrote: > > > > > > > Hi Jason, > > > > > > > > This is regarding the FTDI part. I am using RHEL 5.8. We could not > > > > identify the right device/port in /dev/ directory. Do we need to > > > > install any drivers? > > > > > > > > I tried using the Linux driver they have here: > > > > http://www.ftdichip.com/Drivers/VCP.htm However, I am not able to > > > > install this driver. I was wondering if this is the right driver and > > > > has anyone successfully installed it. > > > > > > > > In either case, could someone throw more light on how to identify the > > > > usb device/serial port associated with this FTDI part on ROACH2 using > > > > RHEL? > > > > > > > > Thanks, > > > > > > > > Nimish > > > > > > > > On Wed, Dec 5, 2012 at 8:11 AM, Nimish Sane <[email protected]> > > > > wrote: > > > > Hi Jason, > > > > > > > > Thank you so much for this information. I will report here if there > > > > are any issues. Though we have not used KATCP previously, we are > > > > familiarizing ourselves to it and plan to use it in future. This is > > > > inline with the scheme you have described. I will try this out now. > > > > > > > > Thanks, > > > > > > > > Nimish > > > > > > > > On Dec 5, 2012, at 1:36 AM, Jason Manley <[email protected]> wrote: > > > > > > > > >> From our understanding usbboot is still not working and we have to > > > > >> use mmcboot using SD cards. Is that correct? In either case, where > > > > >> can I find the instructions and required files? > > > > > > > > > > Yeah, I don't actually think USB's ever going to work right as long > > > > > as we stick with this PPC part... it's got issues with USB! Maybe we > > > > > must look more closely at alternatives for ROACH3. > > > > > > > > > > But ROACH2 can now boot "soloboot" (boots off an onboard FLASH > > > > > memory) and still offer a fully functional tcpborphserver3 interface > > > > > out-of-the-box. This way, you don't have to fiddle with NFS booting, > > > > > or preparing SD cards and worrying about filesystem corruption if you > > > > > don't shutdown properly (soloboot filesystem mounts read only). You > > > > > can now also upload your boffile from your control computer through > > > > > KATCP, so no more rsyncing to get your bof files up there. > > > > > > > > > > Some notes: > > > > > * You can get a command prompt by plugging a USB cable (type A-B) in > > > > > the back and, courtesy of an FTDI part, you should get four serial > > > > > ports. One of 'em (2 or 3, IIRC) will get you to the PPC. If you're > > > > > using KATCP, you should never need to see a ROACH Linux prompt again. > > > > > * An SSH server is not installed on soloboot. You can get a command > > > > > prompt on the network via telnet, but you have to enable the telnet > > > > > server (see /etc/rc.local). > > > > > * DHCP is enabled by default, but you can assign a static IP address > > > > > using the example in /etc/rc.local if you want. > > > > > > > > > > If you want all the Linux bells and whistles, you can still stick an > > > > > SD card in there. You can use the same filesystem as your ROACH-1, > > > > > but you'll have to modify it yourself to use a ROACH-2 compatible > > > > > tcpborphserver. My suggestion would be to try'n use the soloboot > > > > > option first (ie as it ships from digicom). > > > > > > > > > >> I guess I am pretty much confused on how to get started with ROACH2 > > > > >> boards after sifting through the CASPER wiki, so I would appreciate > > > > >> any help on how to get started with ROACH2 boards. > > > > > > > > > > You'll be one of the first CASPER users, so I'll be keen to hear how > > > > > you get on. If you're familiar with ROACH-1 and are using the KATCP > > > > > interface, I think you'll find it reasonably familiar and can > > > > > probably just start using it. All your existing KATCP commands should > > > > > be compatible. If you've been using your own Linux code on the PPC, > > > > > then I'm afraid you're mostly on your own or at the mercy of the rest > > > > > of the collaboration. While we've left support for alternative boot > > > > > options in place on ROACH-2 (which is probably what you want to do if > > > > > you want your own Linux filesystem/commands), SKA-SA will not be > > > > > providing or supporting additional filesystems moving forward > > > > > (mmcboot, usbboot etc). We're moving towards a model using something > > > > > like soloboot where ROACH boards start looking like dumb appliances > > > > > which makes maintenance much easier. KATCP is the only interface we > > > > > can be sure will be supported in future so I'd suggest you aim to use > > > > > that in your new designs if you can. > > > > > > > > > > Jason > > > > > > > > > > > > > > > > -- > > > > Nimish Sane > > > > > > > > Center for Solar-Terrestrial Research > > > > New Jersey Institute of Technology > > > > University Heights > > > > Newark, NJ 07102-1982 USA > > > > Tel: (973) 642 4958 > > > > Fax: (973) 596 3617 > > > > [email protected] > > > > > > > > > > > > > > > > > > > -- > > > Nimish Sane > > > > > > Center for Solar-Terrestrial Research > > > New Jersey Institute of Technology > > > University Heights > > > Newark, NJ 07102-1982 USA > > > Tel: (973) 642 4958 > > > Fax: (973) 596 3617 > > > [email protected] > > > > > > > > > > > > > -- > > Nimish Sane > > > > Center for Solar-Terrestrial Research > > New Jersey Institute of Technology > > University Heights > > Newark, NJ 07102-1982 USA > > Tel: (973) 642 4958 > > Fax: (973) 596 3617 > > [email protected] > > > > > > > -- > Nimish Sane > > Center for Solar-Terrestrial Research > New Jersey Institute of Technology > University Heights > Newark, NJ 07102-1982 USA > Tel: (973) 642 4958 > Fax: (973) 596 3617 > [email protected] >
