[ntp:questions] Atom PPS with parallel port

2014-02-23 Thread Rob
I would like to use the Atom driver (22) on a Linux system with a parallel port. It is not clear to me from the scattered info I have found on internet if this is going to work. Using a modern Linux kernel with the PPS module, is it possible to symlink /dev/pps0 to a parallel port device and

Re: [ntp:questions] Atom PPS with parallel port

2014-02-23 Thread David Lord
Rob wrote: I would like to use the Atom driver (22) on a Linux system with a parallel port. It is not clear to me from the scattered info I have found on internet if this is going to work. Using a modern Linux kernel with the PPS module, is it possible to symlink /dev/pps0 to a parallel port

Re: [ntp:questions] Atom PPS with parallel port

2014-02-23 Thread Rob
David Lord sn...@lordynet.org wrote: Rob wrote: I would like to use the Atom driver (22) on a Linux system with a parallel port. It is not clear to me from the scattered info I have found on internet if this is going to work. Using a modern Linux kernel with the PPS module, is it possible

Re: [ntp:questions] Atom PPS with parallel port

2014-02-23 Thread William Unruh
On 2014-02-23, Rob nom...@example.com wrote: I would like to use the Atom driver (22) on a Linux system with a parallel port. It is not clear to me from the scattered info I have found on internet if this is going to work. Using a modern Linux kernel with the PPS module, is it possible to

Re: [ntp:questions] Atom PPS with parallel port

2014-02-23 Thread David Lord
Rob wrote: David Lord sn...@lordynet.org wrote: Rob wrote: I would like to use the Atom driver (22) on a Linux system with a parallel port. It is not clear to me from the scattered info I have found on internet if this is going to work. Using a modern Linux kernel with the PPS module, is it

Re: [ntp:questions] Atom PPS with parallel port

2014-02-23 Thread William Unruh
On 2014-02-23, David Lord sn...@lordynet.org wrote: Rob wrote: I would like to use the Atom driver (22) on a Linux system with a parallel port. It is not clear to me from the scattered info I have found on internet if this is going to work. Using a modern Linux kernel with the PPS module,

Re: [ntp:questions] Atom PPS with parallel port

2014-02-23 Thread David Lord
William Unruh wrote: On 2014-02-23, David Lord sn...@lordynet.org wrote: Rob wrote: I would like to use the Atom driver (22) on a Linux system with a parallel port. It is not clear to me from the scattered info I have found on internet if this is going to work. Using a modern Linux kernel

Re: [ntp:questions] Atom PPS with parallel port

2014-02-23 Thread Chris Adams
Once upon a time, Rob nom...@example.com said: Did you compile your own kernel or is it all done using standard distribution kernel and tools? I am running mine on Fedora 20, which includes all the necessary bits. The pps_parport module is included in the regular kernel RPMs. I further studied

Re: [ntp:questions] Atom PPS with parallel port

2014-02-23 Thread William Unruh
On 2014-02-23, Chris Adams c...@cmadams.net wrote: Once upon a time, Rob nom...@example.com said: Did you compile your own kernel or is it all done using standard distribution kernel and tools? I am running mine on Fedora 20, which includes all the necessary bits. The pps_parport module is

Re: [ntp:questions] Atom PPS with parallel port

2014-02-23 Thread Rob
David Lord sn...@lordynet.org wrote: Rob wrote: David Lord sn...@lordynet.org wrote: Rob wrote: I would like to use the Atom driver (22) on a Linux system with a parallel port. It is not clear to me from the scattered info I have found on internet if this is going to work. Using a modern

Re: [ntp:questions] Atom PPS with parallel port

2014-02-23 Thread Rob
Chris Adams c...@cmadams.net wrote: I further studied the matter and found that on the CentOS 6.5 system where I first checked the kernel is at 2.6.32 and the pps_parport module is not yet included. When I ran this on a CentOS system, I didn't use the in-kernel PPS. I used the shmpps daemon

[ntp:questions] ACTS Modem mode not working in -dev ?

2014-02-23 Thread Brandon Applegate
In 4.2.6p5 this worked exactly as advertised... I've been running in mode 1 (backup) for quite some time, and it's been working fine. That is to say that a call gets made once at startup, but by the time the other sources become reachable - no subsequent calls are made. Calls should only

Re: [ntp:questions] Linux kernel bug in 3.12, low_latency on serial ports is broken

2014-02-23 Thread Brian Inglis
On 2014-02-20 01:31, Hal Murray wrote: Just a heads-up in case you hit this, or want to avoid it. The symptom is BUG: scheduling while atomic https://bugzilla.redhat.com/show_bug.cgi?id=1065087 The discussion at https://lkml.org/lkml/2014/2/18/77 confirms that it's the low-latency path

Re: [ntp:questions] Atom PPS with parallel port

2014-02-23 Thread William Unruh
On 2014-02-23, Rob nom...@example.com wrote: Chris Adams c...@cmadams.net wrote: I further studied the matter and found that on the CentOS 6.5 system where I first checked the kernel is at 2.6.32 and the pps_parport module is not yet included. When I ran this on a CentOS system, I didn't use

Re: [ntp:questions] Atom PPS with parallel port

2014-02-23 Thread William Unruh
On 2014-02-23, Rob nom...@example.com wrote: David Lord sn...@lordynet.org wrote: Rob wrote: David Lord sn...@lordynet.org wrote: Rob wrote: I would like to use the Atom driver (22) on a Linux system with a parallel port. It is not clear to me from the scattered info I have found on