On Mon, Apr 8, 2013 at 6:03 PM, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > A: No. > Q: Should I include quotations after my reply? > > http://daringfireball.net/2007/07/on_top > > On Mon, Apr 08, 2013 at 05:57:53PM +0200, Hans Beckérus wrote: >> Thanks for the quick response guys. >> Yes, putty is cross-platform, but I am actually running putty on >> Windows ;) It connects over the serial device on my laptop to the >> board running Linux. But Greg, you actually triggered me to check my >> hardware configuration and guess what? I was using the wrong kind of >> cable :) I used a simple male-female converter when I in fact had to >> use a cable that swapped Rx/Tx. My bad! But I have yet one more issue >> now. If I tell Linux to use my ttyUSB0 as console device on the boot >> cmdline, would it actually be able to start it in time? > > Start in time for what? > Start in time for displaying boot progress. Sure, dmesg will show me the details, but I would really like to have it in real-time ;) Actually when I set console=ttyUSB0,115200 all I get is the prompt :( Nothing comes out from the boot, and it does not seem to act as a real console either since any thing that usually pops up there are only showing in dmesg now. Do I need to configure the kernel in some specific way to support USB console mode? This is my current cmdline btw: console=ttyUSB0,115200 root=/dev/ram rw ip=:::::eth0:off earlyprintk Ignore the ip section for now. It is just some old left overs ;) > You can use USB to serial devices as console devices just fine. I > really don't recommend them, but if you have no other way to get a > console, it's better than nothing. > Agree. But in this case a USB serial device is my only option :( Regards, Hans On Mon, Apr 8, 2013 at 6:03 PM, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > A: No. > Q: Should I include quotations after my reply? > > http://daringfireball.net/2007/07/on_top > > On Mon, Apr 08, 2013 at 05:57:53PM +0200, Hans Beckérus wrote: >> Thanks for the quick response guys. >> Yes, putty is cross-platform, but I am actually running putty on >> Windows ;) It connects over the serial device on my laptop to the >> board running Linux. But Greg, you actually triggered me to check my >> hardware configuration and guess what? I was using the wrong kind of >> cable :) I used a simple male-female converter when I in fact had to >> use a cable that swapped Rx/Tx. My bad! But I have yet one more issue >> now. If I tell Linux to use my ttyUSB0 as console device on the boot >> cmdline, would it actually be able to start it in time? > > Start in time for what? > > You can use USB to serial devices as console devices just fine. I > really don't recommend them, but if you have no other way to get a > console, it's better than nothing. > >> I am running with a 3.6 kernel btw. > > That's a bit out-of-date :) > > thanks, > > greg k-h On Mon, Apr 8, 2013 at 6:03 PM, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > A: No. > Q: Should I include quotations after my reply? > > http://daringfireball.net/2007/07/on_top > > On Mon, Apr 08, 2013 at 05:57:53PM +0200, Hans Beckérus wrote: >> Thanks for the quick response guys. >> Yes, putty is cross-platform, but I am actually running putty on >> Windows ;) It connects over the serial device on my laptop to the >> board running Linux. But Greg, you actually triggered me to check my >> hardware configuration and guess what? I was using the wrong kind of >> cable :) I used a simple male-female converter when I in fact had to >> use a cable that swapped Rx/Tx. My bad! But I have yet one more issue >> now. If I tell Linux to use my ttyUSB0 as console device on the boot >> cmdline, would it actually be able to start it in time? > > Start in time for what? > > You can use USB to serial devices as console devices just fine. I > really don't recommend them, but if you have no other way to get a > console, it's better than nothing. > >> I am running with a 3.6 kernel btw. > > That's a bit out-of-date :) > > thanks, > > greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
