Hi All, Udev (dynamic device management)is the best tool to achieve loading and unloading of device driver automatically. You need to write down an rule to support loading and unloading of driver in rules.d file. Sanjeev sharma On Thu, Jun 25, 2009 at 2:08 PM, Peter Chen<hzpeterchen@xxxxxxxxx> wrote: > Hi, > > In our platform, we use udev to implement that host/slave problem. > > Best Regards, > Peter Chen > > On Thu, 2009-06-25 at 12:46 +0530, Arjun Joshi wrote: > > Hi Greg, > > I am trying to make USB work dynamically on an OMAP board which has a USB > OTG controller. The board has a mini-AB receptacle. > > My target is that whenever I insert a mini-B cable the gadget related kernel > modules must be loaded automatically so that my board works as mass storage > device. When i insert a mini-A cable the host mode related kernel modules > must be loaded so that my board works as host. > > I have compiled usbcore, HostController drivers(for both host and gadget > mode --- host.ko and gadget.ko) and mass storage support(for HC in host > mode) and file backed storage gadget(for HC in device mode) > as modules. > > What i am currently doing is that I am plugging a mini-A cable, inserting > usbcore,host.ko and usb-storage.ko and I am able to detect a mobile phone as > a mass storage device. > > Then I rmmod all the modules, unplug the mini-A cable, insert the mini-B > cable, modprobe the usbcore, gadget.ko and g_file_storage.ko which enables > my device to be detected as a mass storage device on my PC. > > Now the tricky part is that I want to do all the loading/unloading of > respective modules dynamically (without any human intervention - maybe > through a script) as soon as I insert the cable(either one) or remove the > cable. > > My Queries: > > 1. How do I detect which cable is inserted? Is there a way to find out? > 2. Is it possible to do this? If yes, any guidance will greatly help. > > Thanks, > Arjun > > > Greg KH wrote: > > On Sun, Apr 12, 2009 at 08:39:32AM +0530, niamathullah sharief wrote: > > > Yes that i know...Is this enough for making USB to enable? > > > Did you try it out to see if it is? > > If so, what problems did you run into? > > thanks, > > greg k-h > > -- > To unsubscribe from this list: send an email with > "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx > Please read the FAQ at http://kernelnewbies.org/FAQ > > > > Email Scanned for Virus & Dangerous Content by : www.CleanMailGateway.com > > > > > -- > ________________________________ > > Disclaimer: This e-mail message and all attachments transmitted with it are > intended solely for the use of the addressee and may contain legally > privileged and confidential information. If the reader of this message is > not the intended recipient, or an employee or agent responsible for > delivering this message to the intended recipient, you are hereby notified > that any dissemination, distribution, copying, or other use of this message > or its attachments is strictly prohibited. If you have received this message > in error, please notify the sender immediately by replying to this message > and please delete it from your computer. Any views expressed in this message > are those of the individual sender unless otherwise stated.Company has taken > enough precautions to prevent the spread of viruses. However the company > accepts no liability for any damage caused by any virus transmitted by this > email. > > ________________________________ > > -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
