On 12/7/2010 8:02 AM, [email protected] wrote: > Hi Greg, > >> On Mon, Dec 06, 2010 at 06:07:50PM +0530, Pavankumar Kondeti wrote: >>> OTG specification mandates no silent failures and all errors should >>> be reported to the user. The spec itself does not give the exact >>> error description. But recommends the error message to be self >>> explanatory. Provide otg_notify_error() utility for USB core and >>> OTG driver to send the error codes to user space. All the error >>> code values are described in include/linux/usb/ch9.h. The user space >>> application can listen to netlink socket and parse the buffer for >>> "MODULE=OTG" and "ERROR=n", where 'n' contains the error code. >> >> How are you going to listen to the netlink socket that is already >> grabbed by libudev? >> > Sorry. I never worked with udev. But I read udev documentation. > I thought an external script can be invoked by adding a udev rule > when MODULE=OTG is matched and ERROR value can be accessed > in the script via env variable. > I ran the sample program @ http://www.kernel.org/doc/pending/hotplug.txt and udevd concurrently. I am able to capture all the uevents in sample program.
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