[U-Boot] Unable to use USB Keyboard on u-boot

Thu May 24 16:13:53 CEST 2012

 Hi Marek,

       Thanks for your reply. I have added the CC to "*u*-*boot*@
lists.denx.de".

On Saturday 19 May 2012 08:35 PM, Marek Vasut wrote:

Dear Atul Kumar,

Firstly, I'm slightly unhappy how you're deliberately ignoring anything I tell
you, especially about CCing the mailing list :-(

  Hi Marek,

      I have tried to add some code here to enable usbkbd that is below.

-if (strcmp(stdinname, DEVNAME)) -- > replaced with below code

+ if (strcmp(stdinname, DEVNAME) == 0)
+                {
+                       // Can't use this, so set the stdin to usbkbd
instead
+                        setenv("stdin", "usbkbd");
+                }

 Where is this code, can you generate a proper patch? I can't locate it. Also,
why not use simple "setenv stdout usbkbd"?

 Here i have just shown removed line of code and added line of code but
still under testing. the command "setenv stdout usbkbd" does not give any
effect. tried in below sequence and other sequence too.

After stdio register

before strcmp

stdin name- serial

before over write

before console assign

before error test

scan end

scanning bus for storage devices... 0 Storage Device(s) found

scanning bus for ethernet devices... Warning: failed to set MAC address

1 Ethernet Device(s) found

OMAP3 beagleboard.org #

setenv stderr usbkbd

OMAP3 beagleboard.org #

setenv stdout usbkbd

OMAP3 beagleboard.org #

setenv stdin usbkbd

OMAP3 beagleboard.org #

As the "setenv stdin usbkbd" is done i am unable to type any thing either
from usb keyboard connected to board or Host pc. Even keyboard LEDs are not
glowing.

    Can you suggest how i should procede.

  On Friday 11 May 2012 05:46 PM, Marek Vasut wrote:

Dear Atul Kumar,

Please CC the mailing list, always.

 Dear Marek,

         Thanks for your attention.. After doing "coninfo", i get below
msg..

OMAP3 beagleboard.org #

coninfo

List of available devices:

serial 80000003 SIO stdin stdout stderr

usbtty 00000

003 .IO

usbkbd 80000001 SI. -----> these values missing in below logs..

OMAP3 beagleboard.org #

values changed here..

OMAP3 beagleboard.org # coninfo
List of available devices:
serial   80000003 SIO stdin stdout stderr
usbtty   00000003 .IO
OMAP3 beagleboard.org #

 tried to do setenv...

 OMAP3 beagleboard.org #

setenv stdin usbkbd

 All right, maybe you should fix your method of pasting u-boot output, you
have every second line blank and a few linebreaks here and there,
randomly. It'd be cool to fix it, it'd make it much easier to read. Can
you do something about it please?

 OMAP3 beagleboard.org #

After doing this my terminal does not prints any logs but i am able to type
on console..

 You mean with the keyboard? Because "setenv stdin usbkbd" tells the system
to read input from the USB keyboard.

 Here, I am not able to give input to terminal.. No keyboard lights are
glowing..
unable to get back to console to type any thing from keyboard. there is
nothing in console "overwrite_console()" function .. do we need to apply
any patch here.. please suggest..

 Once when i reboot the board again the logs starts coming up..

 Ah ... so you got no console output. Try typing on the usb keyboard. If
you change stdin to usbkbd, you'd only be able to type with the USB
keyboard, it won't pick input from the UART/serial port or whatever other
source you use.

 I see on "*stdin name- *serial** " .. if instead of serial "*usbkbd*" is
there it will be able to register the kbd..

 Unable to change "stdin name- serial"..  to "stdin name- usbkbd" any other
method.. suggest..

OMAP3 beagleboard.org #usb reset
(Re)start USB...
USB:   Initializing OMAP EHCI
OMAP UHH_REVISION 0x10
OMAP EHCI init done
Register 1313 NbrPorts 3
USB EHCI 1.00
scanning bus for devices...
4 USB Device(s) found
USB KBD: found set protocol...
USB KBD: found set idle...
USB KBD: enable interrupt pipe...
USB KBD: found set up device.
USB KBD: register.
usb_kbd_dev.name- usbkbd
before stdio register
clone _dev->name-usbkbd,dev->name-usbkbd
in stdio register,usb_kbd_dev.name- usbkbd
After stdio register
 before strcmp
stdin name- serial
 before over write
 before console assign
 before error test
scan end
       scanning bus for storage devices... 0 Storage Device(s) found
       scanning bus for ethernet devices... Warning: failed to set MAC
address
1 Ethernet Device(s) found
OMAP3 beagleboard.org #

 I tried this another way but do not find any change in pri ..

 Pri?
[...]

btw it's a good practice in the mailing list to not top-post (aka reply
under the email you're replying to). But if you comment on stuff, you can
do it in the
middle of the email (just like I did with this one) to better identify what
you're replying to.

 this is "pr- print environment variables/settings " or pri or print.

 Thanks & Regards
Atul Kumar

On Fri, May 11, 2012 at 4:25 PM, Marek Vasut <marex at denx.de>
<marex at denx.de><marex at denx.de> <marex at denx.de> wrote:

 Dear Atul Kumar,

 Dear Marek,

         I am tring to bring up USB Keyboard on u-boot with
         "Beagle_board

xM ver B"..  found number of post,but the stack is already updated
one.. I am able to find the info of the connected device but some how
keyboard does not works..  can you suggest/guide me were i am making
mistake or where I need to do some device specific changes..

 Please always CC the U-Boot mailing list (CCed).

Did you try running "coninfo" after the "usb reset"/"usb start"? What
does it
output, do you see "usbkbd" there? Wild guess would be to run "setenv
stdin usbkbd" or something after you do "usb reset".

 *logs for "usb start"*

OMAP3 beagleboard.org #

usb start

(Re)start USB...

USB: Initializing OMAP EHCI

OMAP UHH_REV

ISION 0x10

OMAP EHCI init done

Register 1313 NbrPorts 3

USB EHCI 1.00

scanning bus for devices...

4 USB Device(s) found

USB KBD: found set protocol...

USB KBD: found set idle...

USB

KBD: enable interrupt pipe...

USB KBD: found set up device.

USB KBD: register.

usb_kbd_dev.name- usbkbd

before stdio register

clone _dev->name-usbkbd,dev->name-usbkbd

in stdio register,usb_kbd_dev.name- usbkbd

After stdio register

before strcmp

stdin name- *serial*

scan end

scanning bus for storage devices... 0 Storage Device(s) found

scanning bus for ethernet devices... Warning: failed to set MAC address

1 Ethernet Device(s) found

OMAP3 beagleboard.org #

*logs for "usb info"*

OMAP3 beagleboard.org #

usb info

1: Hub, USB Revision 2.0

- u-boot EHCI Host Controller

- Class: Hub

- PacketSize: 64 Configurations: 1

-

Vendor: 0x0000 Product 0x0000 Version 1.0

Configuration: 1

- Interfaces: 1 Self Powered 0mA

Interface: 0

- Alternate Setting 0, Endpoints: 1

- Class Hub

- Endpoint 1 In Interrupt MaxPacket 8 Interval 255ms

2: Hub, USB Revision 2.0

- Class: Hub

- PacketSize: 64 Configurations: 1

- Vendor: 0x0424 Product 0x9514 Version 2.0

Configuration: 1

- Interfaces: 1 Self Powered Remote Wakeup 2mA

Interface: 0

- Alternate Setting 0, Endpoints: 1

- Class Hub

- Endpoint 1 In Interrupt MaxPacket 1 Interval 12ms

- Endpoint 1 In Interrupt MaxPacket 1 Interval 12ms

3: Vendor specific, USB Revision 2.0

- Class: Vendor specific

- PacketSize: 64 Configurations: 1

- Vendor: 0x0424 Product 0xec00 Version 2.0

Configuration: 1

- Interfaces: 1 Self Powered Remote Wakeup 2mA

Interface: 0

- Alternate Setting 0, Endpoints: 3

- Class Vendor specific

- Endpoint 1 In Bulk MaxPacket 512

- Endpoint 2 Out Bulk MaxPacket 512

- Endpoint 3 In Interrupt MaxPacket 16 Interval 4ms

4: Human Interface, USB Revision 1.10

- LITEON Technology USB Multimedia Keyboard

- Class: (from Interface) Human Interface

- PacketSize: 8 Configurations: 1

- Vendor: 0x046d Product 0xc312 Version 1.1

Configuration: 1

- Interfaces: 1 Bus Powered Remote Wakeup 70mA

Interface: 0

- Alternate Setting 0, Endpoints: 1

- Class Human Interface, Subclass: Boot Keyboard

- Endpoint 1 In Interrupt MaxPacket 8 Interval 24ms

OMAP3 beagleboard.org #

Thanks & Regards
Atul Kumar