Re: [PATCH] usb/core/devio.c: Check for printer class specificrequest

From: Greg KH
Date: Mon Sep 26 2011 - 18:45:38 EST


On Sun, Sep 25, 2011 at 02:46:51PM +0200, Matthias Dellweg wrote:
> From: Matthias Dellweg <2500@xxxxxx>
>
> In the usb printer class specific request get_device_id the value of
> wIndex is (interface << 8 | altsetting) instead of just interface.
> This enables the detection of some printers with libusb.
>
> The hardware I tested this patch with is a Prolific
> USB->Centronics cable (067b:2305).
>
> Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Matthias Dellweg <2500@xxxxxx>
> Cc: stable <stable@xxxxxxxxxx>
> ---
> drivers/usb/core/devio.c | 21 ++++++++++++++++++---
> 1 files changed, 18 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
> index 37518df..1d73709 100644
> --- a/drivers/usb/core/devio.c
> +++ b/drivers/usb/core/devio.c
> @@ -607,9 +607,10 @@ static int findintfep(struct usb_device *dev, unsigned int ep)
> }
>
> static int check_ctrlrecip(struct dev_state *ps, unsigned int requesttype,
> - unsigned int index)
> + unsigned int request, unsigned int index)
> {
> int ret = 0;
> + struct usb_host_interface *alt_setting;
>
> if (ps->dev->state != USB_STATE_UNAUTHENTICATED
> && ps->dev->state != USB_STATE_ADDRESS

All of the tabs were stripped out of this email, making it impossible to
apply it :(

Care to fix this up and resend it so that I can apply it?

thanks,

greg k-h
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