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SubjectRe: 2.6.29rc1 brakes usb
> > > > Since version 2.6.29rc1 querying cleware USb devices no longer works.
> > > > 2.6.28 works fine. 2.6.29-rc2 also no longer works.
> > >
> > > What kind of device is this? What happens if you try to use the device?
> > > Isn't it detected, do you get an error?
> >
> > It is a powerswitch that can be toggled via USB. Cleware also has
> > sensors (temperature, humidity, etc.) that all can be handled via a
> > commandline utility I wrote.
> > It has been a while but if i remember correctly the failing ioctl is for
> > determing the serial number of the device. That is required to talk to
> > the right device. http://www.vanheusden.com/clewarecontrol/
>
> There's a known bug in hiddev. Please test the included patch.

Works!

Acked-by: Folkert van Heusden <folkert@vanheusden.com>

> --- linux-2.6/drivers/hid/usbhid/hiddev.c.alt 2009-01-26 20:03:10.000000000 +0100
> +++ linux-2.6/drivers/hid/usbhid/hiddev.c 2009-01-26 20:03:17.000000000 +0100
> @@ -656,7 +656,7 @@ static long hiddev_ioctl(struct file *fi
>
> case HIDIOCGSTRING:
> mutex_lock(&hiddev->existancelock);
> - if (!hiddev->exist)
> + if (hiddev->exist)
> r = hiddev_ioctl_string(hiddev, cmd, user_arg);
> else
> r = -ENODEV;


Folkert van Heusden

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