Is there a way to stop a module from claiming a given device no matter how/when it gets plugged? For example, there's a series of power supplies (UPSes) with USB connection (common nowadays) which, by default, gets claimed by usbhid module. But it does not work as a HID device, instead it uses a serial line logic and has a USB<=>serial converter inside, which works just fine with cypress_m8 usbserial driver. usbhid module is loaded on startup (to handle usb keyboards/mouses), and it claims this device too. Using /sys/bus/.../drivers/usbhid/unbind releases it, after which cypress_m8 works as expected. But after re-plugging it gets claimed by usbhid again. I understand that it's easy to write an udev rule (I don't use udev but that's another story) to unbind the device from the driver and bind it to another driver automatically. That's basically what I have for now (handling hidraw* device). But that seems somewhat... ugly, at best. The question is: is it possible to tell usbhid to STOP claiming devices with given vendor:device identifier, from now on? I also understand that to do it permanently the given vendor:device has to be blacklisted in the driver source. But I don't think it's worth the effort. Sort of runtime blacklist support -- possible? Thanks! /mjt -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
