Dear Calvin Boyd,

* please always CC the mailing list! * please avoid top-posting!

Dear Marek Vasut,

I tried using the CONFIG_CMD_USB to enable the use of the usb commands from the u-boot command prompt. However, I am getting compilation errors:

drivers/usb/host/libusb_host.a(ehci-hcd.o): In function `usb_lowlevel_init': ehci-hcd.c:(.text+0x5d4): undefined reference to `ehci_hcd_init' drivers/usb/host/libusb_host.a(ehci-hcd.o): In function `usb_lowlevel_stop': ehci-hcd.c:(.text+0x850): undefined reference to `ehci_hcd_stop' make: *** [u-boot] Error 1

You also need to enable driver for your USB host controller.

Regards, Calvin Boyd

...

From: marek.vasut@gmail.com To: u-boot@lists.denx.de Subject: Re: [U-Boot] Loading kernel from usb Date: Sun, 25 Mar 2012 01:41:30 +0100 CC: calvin_boyd@hotmail.com

Dear Calvin Boyd,

...

I am currently working on a project and I am trying to load the kernel from usb instead of an sd card. How do you configure u-boot to support usb commands?

Why don't you attempt to please read the documentation first? Try "CONFIG_CMD_USB" for starters.

Best regards, Marek Vasut

Best regards, Marek Vasut