EHCI Gadget Debug: Difference between revisions
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! Buglabs's bug 2.0 | ! Buglabs's bug 2.0 | ||
| [https://github.com/ | | [https://github.com/buglabs/bug20-2.6.35-linaro/commits/master (2.6.35) ] | ||
| Lenovo X60 | | Lenovo X60 | ||
| {{yes}} | | {{yes}} | ||
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Revision as of 16:44, 7 June 2013
Introduction
This page is about using embedded GNU/Linux devices in order to get the USB debug logs.
Howto
Compiling
- You need to be familiar with (cross) compiling your kernel.
- (Cross) compile it as usual but during the configuration do the following:
Go into Device Drivers:
Device Drivers --->
Then go into USB support:
[*] USB support --->
Then go into USB Gadget Support:
<M> USB Gadget Support --->
Then enable the following option:
<M> EHCI Debug Device Gadget
Then select the printk option for now(a bug has to be fixed to make serial option work properly):
EHCI Debug Device mode (printk) --->
Loading
Remove all usb gadget drivers such as g_ehter or g_mass_storage with rmmod then do:
modprobe g_dbgp
Finding the USB debug port
See EHCI Debug Port#Finding the USB debug port
Tested hardware
| Brand and Device | kernel used | Target devices | works? |
|---|---|---|---|
| Goldelico GTA04 A3 | neil-plus kernel and branch (3.7) | Lenovo X60 | Yes |
| Buglabs's bug 2.0 | (2.6.35) | Lenovo X60 | Yes |