Messages in this thread | | | Date | Tue, 19 Aug 2003 21:58:45 -0700 (PDT) | Subject | Re: Console on USB | From | "Randy.Dunlap" <> |
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>> So I ordered a USB to serial converter, configured a 2.6.0-test3 >> kernel, added a console=/dev/ttyUSB0 to the kernel command line and >> connected this to my desktop with a null modem adapter. > > What made you think this will work?!
Maybe the drivers/usb/serial/Kconfig file?
config USB_SERIAL_CONSOLE bool "USB Serial Console device support (EXPERIMENTAL)" depends on USB_SERIAL=y && EXPERIMENTAL
>> Is there any advice I might be able to use to get this going? > > You'd have to write it. Grep for register_console for starters. > But I do not advise it, see below.
usb/serial/console.c:255: register_console(&usbcons);
>> I really want to be able to catch some oops output. > > If oops happens with interrupts closed, forget about it. > USB needs interrupts to work. This is one of the reasons nobody > bothered to implement console over USB serial.
The call to register_console() also happens very late in the boot sequence, so if your oops is early, USB console won't help.
> You will have a better chance using Ingo's netconsole, if a patch > for your Ethernet driver exists.
Certainly, I agree.
~Randy
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