hi,
>>that will allow the Davinci EVM to look like an USB mass storage device when
>>inserted into a host PC
You'll operate your board as an usb device or in linux caled "gadget".
(www.linux-usb.org/gadget)
In august David Brownell posted the following answer to a question of me:
You'll need to build a new kernel. Reconfig is a bit quirky; fire up xconfig
(or menuconfig) and:
- Goto Drivers/USB, enable host.
- Goto Drivers/USB/Gadget; enable gadget, select one or more gadget driver;
you'll be stuck with "dummy HCD" so far
(->there is a gadget driver for file-backed storage, i think that's the driver
you are looking for.
in the kernel source you'll find it as file: drivers/usb/gadget/file_storage)
- Up one level in kconfig, enable "Inventra Highspeed Dual Role Controller
(TI..."
and select driver mode "USB Peripheral" ... probably with DMA disabled.
- Go back to "gadget" and be sure that "Inventra ... " is selected.
- Go back and disable USB host side.
(Hmm, that seems excessively nasty...)
There you go ... rebuild, install, reboot. You'll also need to remove J7 (or
switch it to 1-2) and get a nonstandard A-to-A cable, unless you desolder the
USB-A connector and replace it with a B, Mini-B, or Mini-AB one.
hope it helps.
regards
andy
-----Ursprüngliche Nachricht-----
Von: [EMAIL PROTECTED] im Auftrag von peike
Gesendet: Mo 18.09.2006 15:30
An: davinci-linux-open-s...
Betreff: [SPAM] How to Add USB Mass Storage Device Functi on to U-Boot-1.1 .3
for DaVinci?
Hello,Members
I want to add 'do_usb' and 'do_usbboot' commands for DaVinci u-boot-1.1.3.
I wonder if we can implement USB Mass Storage Device(Subclass:using USB MSC
Bulk-Only Transport or ATA Command Block)Class that will allow the Davinci EVM
to look like an USB mass storage device when inserted into a host PC. I found
there are many source codes about usb in u-boot-1.1.3, such
as~/uboot_1_1_3/common/cmd_usb.c,
~/uboot_1_1_3/drivers/usbdcore.c,usbdcore_ep0.c, usbdcore_omap1510.c, etc. How
can i modify these sample codes to Mass Storage Device (or bulk-only
device)class for Davinci EVM? Or if Linux-2.6.10 support USB device class for
Davinci EVM?
Thanks for any help!
Best regards/Bill
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