From f3356e3bf77ef2894203a7cf21bea5fe648b5ff8 Mon Sep 17 00:00:00 2001 From: Francis Rowe Date: Sun, 5 Apr 2015 00:05:33 +0100 Subject: docs/install/bbb_setup.html: more notes about ehci debug --- docs/install/bbb_setup.html | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/docs/install/bbb_setup.html b/docs/install/bbb_setup.html index dfd8d90b..4bef4411 100644 --- a/docs/install/bbb_setup.html +++ b/docs/install/bbb_setup.html @@ -352,6 +352,24 @@ from #coreboot <stefanct> tty0_: the coreboot config is clear to me... it fails to show up in lsusb already <tty0_> on BBB, unload all the modules, then modprobe g_dbgp <tty0_> ... and when i siad lsusb, you do that on the target system, not on BBB + +<tty0_> fchmmr, the kernel should be compiled with: CONFIG_EARLY_PRINTK_DBGP=y to output on EHCI debug: https://wiki.ubuntu.com/Kernel/Debugging/USBearlyprintk + +<tty0_> stefanct, carldani: Note that the script has small bug in the last for loop: for dev in "$debug_dmesg_devs"; do ... +<stefanct> tty0_: had ;) +<stefanct> carldani: ok that's what i was expecting, thanks +* ob-sed has quit (Ping timeout: 248 seconds) +<tty0_> On the wiki there are links to two scripts, the updated one has bug +<tty0_> $debug_dmesg_devs should not be quoted +<tty0_> ... if there are multiple controllers with debug, $dev will be assgined <controller1 controller2> instead of iterating throug each of them +<stefanct> i have seen your conversation with mtjm earlier +<stefanct> that's the reason why i was working on usb debug today at all :) +<stefanct> idwer: ping +<carldani> tty0_: indeed, this was a bug. +<stefanct> carldani: the most annoying thing about lsusb... the debug device is actually missing from lsusb -t as i have found out today +<tty0_> It shows only ports that have something attached to them, because of that you have to go with usb stick through all the ports and run the script each time +<stefanct> tty0_: lsusb without the -t shows the debug device... but doesnt print the port number + -- cgit v1.2.3-70-g09d2