USB to serial module loaded?

[tomhammond]

Hello all,

I am kind of a Linux newbie, but desperately trying to learn. :) I did a full install of Fedora Core 6 and am trying to get my serial hardware modem to work through a serial to USB adapter. I know this package comes with FC6, but I can't tell if it's installed and/or active on my system.

Can anyone help? I know that my USB converter & serial modem are OK as they worked on a FC6 install from a totally different computer.

Thanks for any help!
Tom

[stevea]

Plug in the usb device and then type the "dmesg" command and see what appears as the last 10 lines or so. Typically the usb serial devices shows up as /dev/ttyUSB0 ....

[tomhammond]

Hi Steve,

Thanks for the tip. When plug in the USB to serial adapter into my PS3 USB port (running FC6 full install), I get the following message:

usb 1-2.1: USB disconnect, address 10
usb 1-2.1: new full speed USB device using ehci_hcd and address 11
usb 1-2.1: configuation #1 chosen from 1 choice

When I plug the serial converter into a USB port on a Intel computer, the converter is detected and I get the following:

usb 2-2: new full speed USB device using uhci_hdc and address 5
usb 2-2: configuration #1 chosen from 1 choice
pl2303 2-2: 1.0: pl2303 converter detected
usb 2-2: pl2303 converter now attached to ttyusb0

How come the PS3 isn't detecting the converter? It detects the fact that I plugged it in as a "full speed USB device". Both machines are running FC6 full install.

How do I check if the USB to serial converter module is loaded and running in Linux on my PS3? Perhaps that module wasn't loaded somehow.

Thanks for the help!
Tom

[sej7278]

looks like the module hasn't been ported to the cell.....?

[tomhammond]

I installed FC5 specifically compiled for the PS3 (actually, it's PowerPC compatible) and the serial to USB converter module was listed as one of the included modules on the website.

I installed the full version of FC6 on the PS3 and it runs great with the GUI and everything. The converter module should be there, as the module works fine on a full version of FC6 on an Intel computer. Does that make sense? My USB devices (keyboard & mouse) work fine and the DMESG command notices when I plug & unplug the converter.

I think that the serial to USB converter module is there, but I don't know what Linux command tells me what modules are installed or activated.

Thanks for any advice that you can give!
Tom

[tomhammond]

Does the type of USB controller make a difference? The PS3 uses an "ehci_hcd" USB controller and the Intel computer uses a "uhci_hdc" conroller. The Intel computer finds the serial converter just fine.

This webpage talks about activating either the "uhci_hdc" or "ohci_hcd" controllers to properly activate USB support, but doesn't mention the ehci_hcd controller than my PS3 uses. :(

http://linuxusbguide.sourceforge.net/USB-guide-1.0.9/c122.html