Re: sysrq over *USB*

2021-11-21 Thread Marc SCHAEFER
On Fri, Oct 15, 2021 at 09:02:50PM +0200, Marc SCHAEFER wrote: > Should I abandon all hope to make it work with USB, or should it work? Yes, sysrq can work with USB, but not with stock Debian kernels, because of [1]. Here is the work-around: 1) recompile kernel (see [2]) with the following optio

Re: sysrq over *USB*

2021-10-18 Thread David Wright
On Mon 18 Oct 2021 at 13:06:33 (+0200), Marc SCHAEFER wrote: > On Fri, Oct 15, 2021 at 09:33:20PM -0500, Nicholas Geovanis wrote: > > It's a side issue, not my main question, but If feel some details are > > missing in > > the "apu2 null modem" block-box there :-) > > It may be that your e-mai

Re: sysrq over *USB*

2021-10-18 Thread Marc SCHAEFER
Hello, On Fri, Oct 15, 2021 at 09:33:20PM -0500, Nicholas Geovanis wrote: > It's a side issue, not my main question, but If feel some details are > missing in > the "apu2 null modem" block-box there :-) It may be that your e-mail client is not handling ASCII art properly, you can look at the

Re: sysrq over *USB*

2021-10-15 Thread Nicholas Geovanis
On Fri, Oct 15, 2021 at 2:09 PM Marc SCHAEFER wrote: > Hello, > > I made the following setup work, that is I can send break and '?' > (to get the magic sysrq help) or 's' to do an Emergency sync, and the > kernel logs it: > > laptopapu2 > USB serial po

sysrq over *USB*

2021-10-15 Thread Marc SCHAEFER
Hello, I made the following setup work, that is I can send break and '?' (to get the magic sysrq help) or 's' to do an Emergency sync, and the kernel logs it: laptopapu2 USB serial port --- null modem --- ttyS0 internal 16550A (an apu2 is an e