EHCI Gadget Debug: Difference between revisions
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(Created page with "== Introduction == This page is about using embedded GNU/Linux devices in order to get the USB debug logs. == Compatible hardware ==") |
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This page is about using embedded GNU/Linux devices in order to get the USB debug logs. | 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 == | |||
{| class="wikitable" border="1" | |||
! Brand and Device | |||
! kernel used | |||
! Target devices | |||
! works? | |||
|- | |||
! [http://projects.goldelico.com/p/gta04-main/ Goldelico GTA04 A3] | |||
| [https://github.com/goldelico/gta04-kernel/commits/neil-plus neil-plus kernel and branch (3.7)] | |||
| Lenovo X60 | |||
| {{yes}} | |||
|- | |||
! [http://wiki.buglabs.net/index.php/Welcome_to_BUG_Wiki Buglabs's bug 2.0] | |||
| [https://github.com/buglabs/bug20-2.6.35-linaro/commits/master bug20-2.6.35-linaro's master (2.6.35) ] | |||
| Lenovo X60 | |||
| {{yes}} | |||
|- | |||
|} |
Revision as of 16:45, 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 | bug20-2.6.35-linaro's master (2.6.35) | Lenovo X60 | Yes |