diff options
| author | tzafrir <tzafrir@5390a7c7-147a-4af0-8ec9-7488f05a26cb> | 2007-09-22 20:51:33 +0000 |
|---|---|---|
| committer | tzafrir <tzafrir@5390a7c7-147a-4af0-8ec9-7488f05a26cb> | 2007-09-22 20:51:33 +0000 |
| commit | 362b77d3ae9a9ec208086fc014e90158bc1bc22a (patch) | |
| tree | 98d44a7c8766a52095ab13bbe36d05832b4f848c /README | |
| parent | d8408feade6cd16368f04f7b1f40b3448853c709 (diff) | |
Backport support for high-resolution timers from 1.4. Allows 2.6.22
Fedoras to build again.
git-svn-id: http://svn.digium.com/svn/zaptel/branches/1.2@3083 5390a7c7-147a-4af0-8ec9-7488f05a26cb
Diffstat (limited to 'README')
| -rw-r--r-- | README | 17 |
1 files changed, 13 insertions, 4 deletions
@@ -74,7 +74,7 @@ Kernel Source / "Headers" kernel image. * On Debian Etch and above and any Ubuntu this is +++ linux-headers-`uname -r` +++ - * On Fedora RHEL and compatibles (e.g. CentOS) this is the + * On Fedora, RHEL and compatibles (e.g. CentOS) this is the kernel-devel package. Or if you run kernel-smp or kernel-xen, you need kernel-smp-devel or kernel-xen-devel, respectively. * On SUSE you seem to need the package kernel-source . @@ -97,8 +97,11 @@ If you build a custom kernel, note the following configuration items: be selected These can be selected from the "Library Routines" submenu during kernel configuration via "make menuconfig". - If you don't have any zaptel hardware, you need ztdummy. - * ztdummy on i386/amd64 and later kernels (>= 2.6.15) can (and should) - use the system's RTC (Real Time Clock). + * ztdummy on i386/x86_64 with kernels >= 2.6.22 can (and should) use + high resolution times (CONFIG_HIGH_RES_TIMERS), and (if available, + the system HPET. + * ztdummy on i386/x86_64 and later kernels (>= 2.6.15) can use the + system's RTC (Real Time Clock). * Alternatives to that for ztdummy are a UHCI USB controller (USB controllers made by Intel or VIA) or a kernel that has HZ=1000 (default on kernels 2.6.0-2.6.12, optional on newer kernels. Not @@ -136,7 +139,7 @@ You need the following non-kernel-related packages: yum install gcc newt-devel libusb-devel If the following command produces an error, you need to install -ithe kernel devel package: +the kernel devel package: ls /lib/modules/`uname -r`/build/.config @@ -322,6 +325,12 @@ first cycle. Eitherwise it will just give you in each cycle the percent of how close it was. Also try running it with the option -v for a verbose output. +To check the clock source that is built into ztdummy, you can either +look at title of its span in /proc/zaptel file for a "source:" in the +description. Or even run: + + strings zaptel.ko | grep source: + Spans and Channels ------------------ |