4 messages, 3 authors, 2007-09-21 · open the first message on its own page
From: Jon Smirl <hidden>
Date: 2007-09-20 15:55:11
Is there a command for printing the device tree on a running system? I want to see what changes the various device drivers made to the DTC I started with. -- Jon Smirl jonsmirl@gmail.com
From: Scott Wood <hidden>
Date: 2007-09-20 16:08:41
On Thu, Sep 20, 2007 at 11:55:10AM -0400, Jon Smirl wrote:
Is there a command for printing the device tree on a running system? I want to see what changes the various device drivers made to the DTC I started with.
It's exported in /proc/device-tree, if support is built into the kernel. It might be interesting to make dtc support turning that into a dts... -Scott
From: Jon Smirl <hidden>
Date: 2007-09-20 16:21:32
On 9/20/07, Scott Wood [off-list ref] wrote:
On Thu, Sep 20, 2007 at 11:55:10AM -0400, Jon Smirl wrote:quoted
Is there a command for printing the device tree on a running system? I want to see what changes the various device drivers made to the DTC I started with.It's exported in /proc/device-tree, if support is built into the kernel.
That worked, didn't know the option existed.
It might be interesting to make dtc support turning that into a dts...
That would be useful, you could do a diff and see how the tree was altered. The case I just looked at was old code manually building entries for i2c devices in the tree, but with an updated dts the devices are already in the tree which explains the error I got about conflicting device nodes.
-Scott
-- Jon Smirl jonsmirl@gmail.com
From: Josh Boyer <hidden>
Date: 2007-09-21 01:18:44
On Thu, 2007-09-20 at 12:21 -0400, Jon Smirl wrote:
On 9/20/07, Scott Wood [off-list ref] wrote:quoted
On Thu, Sep 20, 2007 at 11:55:10AM -0400, Jon Smirl wrote:quoted
Is there a command for printing the device tree on a running system? I want to see what changes the various device drivers made to the DTC I started with.It's exported in /proc/device-tree, if support is built into the kernel.That worked, didn't know the option existed.quoted
It might be interesting to make dtc support turning that into a dts...
dtc does support that. Pass /proc/device-tree/ to dtc like this: dtc -I fs -o device-tree.dts -O dts /proc/device-tree josh