Re: Device to write to all (serial) consoles

2019-08-08 Thread Enrico Weigelt, metux IT consult
On 02.08.19 15:23, Paul Menzel wrote: Does a device exist, or can a device be configured so you can write to all (serial) consoles from user space? Why not just writing a little program that listens on a pipe or a pty and writes out everything to all the tty's you want ? --mtx -- Enrico

Re: Device to write to all (serial) consoles

2019-08-03 Thread Adam Borowski
On Sat, Aug 03, 2019 at 03:55:37PM +0200, Greg Kroah-Hartman wrote: > On Sat, Aug 03, 2019 at 03:23:23PM +0200, Adam Borowski wrote: > > On Fri, Aug 02, 2019 at 09:59:06PM +0200, Paul Menzel wrote: > > > Because the cable is always connected to the port on the back side, and > > > sometimes the

Re: Device to write to all (serial) consoles

2019-08-03 Thread Greg Kroah-Hartman
On Sat, Aug 03, 2019 at 03:23:23PM +0200, Adam Borowski wrote: > On Fri, Aug 02, 2019 at 09:59:06PM +0200, Paul Menzel wrote: > > On 02.08.19 18:02, Greg Kroah-Hartman wrote: > > > On Fri, Aug 02, 2019 at 03:23:08PM +0200, Paul Menzel wrote: > > > > On a lot of devices, like servers, you have more

Re: Device to write to all (serial) consoles

2019-08-03 Thread Adam Borowski
On Fri, Aug 02, 2019 at 09:59:06PM +0200, Paul Menzel wrote: > On 02.08.19 18:02, Greg Kroah-Hartman wrote: > > On Fri, Aug 02, 2019 at 03:23:08PM +0200, Paul Menzel wrote: > > > On a lot of devices, like servers, you have more than one serial console, > > > and you do not always know, how they

Re: Device to write to all (serial) consoles

2019-08-03 Thread Greg Kroah-Hartman
On Fri, Aug 02, 2019 at 09:59:06PM +0200, Paul Menzel wrote: > Dear Greg, > > > On 02.08.19 18:02, Greg Kroah-Hartman wrote: > > On Fri, Aug 02, 2019 at 03:23:08PM +0200, Paul Menzel wrote: > > > > On a lot of devices, like servers, you have more than one serial console, > > > and you do not

Re: Device to write to all (serial) consoles

2019-08-02 Thread Paul Menzel
Dear Greg, On 02.08.19 18:02, Greg Kroah-Hartman wrote: On Fri, Aug 02, 2019 at 03:23:08PM +0200, Paul Menzel wrote: On a lot of devices, like servers, you have more than one serial console, and you do not always know, how they are numbered. Therefore, we start a console on ttyS0 and ttyS1.

Re: Device to write to all (serial) consoles

2019-08-02 Thread Greg Kroah-Hartman
On Fri, Aug 02, 2019 at 03:23:08PM +0200, Paul Menzel wrote: > Dear Linux folks, > > > On a lot of devices, like servers, you have more than one serial console, > and you do not always know, how they are numbered. Therefore, we start a > console on ttyS0 and ttyS1. > > In user space, we also

Device to write to all (serial) consoles

2019-08-02 Thread Paul Menzel
Dear Linux folks, On a lot of devices, like servers, you have more than one serial console, and you do not always know, how they are numbered. Therefore, we start a console on ttyS0 and ttyS1. In user space, we also would like to write to both consoles to not worry about the numbering. Writing