On Wed, Apr 29, 2009 at 2:12 PM, Greg KH <greg@xxxxxxxxx> wrote:
> On Wed, Apr 29, 2009 at 11:11:35AM -0700, Greg KH wrote:
>> On Wed, Apr 29, 2009 at 02:05:37PM -0400, Chris Hallinan wrote:
>> > I have an OMAP3 board, and want usb (host mode) configured as a
>> > loadable module. Using a generic rule such as this:
>> > RUN+="/sbin/modprobe -b $env{MODALIAS}"
>> >
>> > ends up passing "platform:musb_hdrc" to modprobe, which obviously
>> > fails.
>>
>> Why would that fail? Do you have the proper modalias in the kernel
>> module to handle this? If not, can you add it?
>
> I see:
> MODULE_ALIAS("platform:" MUSB_DRIVER_NAME);
> in the musb code, perhaps MUSB_DRIVER_NAME is not set correctly to be
> "musb_hdrc" somehow?
>From musb_core.c:
#define MUSB_DRIVER_NAME "musb_hdrc"
const char musb_driver_name[] = MUSB_DRIVER_NAME;
So somewhere else in kernel code (common Kobject/platform code, I
don't know) must be prepending the string "platform:" to the driver
name. Is this what you think the problem is? All of the platform
drivers display this way. From a simple script I wrote that dumps
env:
export MODALIAS="platform:twl4030_usb"
export MODALIAS="platform:twl4030_gpio"
export MODALIAS="platform:twl4030_reg"
export MODALIAS="platform:twl4030_reg"
export MODALIAS="platform:twl4030_reg"
export MODALIAS="platform:twl4030_reg"
export MODALIAS="platform:twl4030_reg"
export MODALIAS="platform:twl4030_reg"
export MODALIAS="platform:twl4030_reg"
export MODALIAS="platform:twl4030_rtc"
export MODALIAS="platform:twl4030_gpio"
export MODALIAS="platform:twl4030_usb"
export MODALIAS="platform:twl4030_reg"
export MODALIAS="platform:twl4030_reg"
export MODALIAS="platform:twl4030_reg"
export MODALIAS="platform:twl4030_reg"
export MODALIAS="platform:gpio-keys"
export MODALIAS="platform:i2c_omap"
export MODALIAS="platform:leds-gpio"
export MODALIAS="platform:i2c_omap"
export MODALIAS="platform:mmci-omap-hs"
export MODALIAS="platform:musb_hdrc"
export MODALIAS="platform:omap3beagle_lcd"
export MODALIAS="platform:omap2-nand"
export MODALIAS="platform:omapfb"
export MODALIAS="platform:serial8250"
export MODALIAS="platform:serial8250"
export MODALIAS="platform:i2c_omap"
export MODALIAS="platform:gpio-keys"
export MODALIAS="platform:i2c_omap"
export MODALIAS="platform:leds-gpio"
export MODALIAS="platform:omap2-nand"
export MODALIAS="platform:mmci-omap-hs"
export MODALIAS="platform:musb_hdrc"
export MODALIAS="platform:omap3beagle_lcd"
export MODALIAS="platform:serial8250"
export MODALIAS="platform:omapfb"
export MODALIAS="platform:serial8250"
export MODALIAS="platform:twl4030_reg"
export MODALIAS="platform:twl4030_reg"
export MODALIAS="platform:twl4030_reg"
export MODALIAS="platform:twl4030_rtc"
-Chris
--
Life is like Linux - it never stands still.
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