On Thu, Mar 5, 2009 at 12:00 PM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote:
> On Wed, 4 Mar 2009, Jon Smirl wrote:
> The -ENOENT error comes up somewhere in proc_do_submiturb() in
> drivers/usb/core/devio.c, or in one of the subroutines it calls:
> findintfep() or checkintf(). The error return must occur before the
> line:
>
> switch(uurb->type) {
>
It can't find the end point. It is asking for EP 81 on interface 0.
if ((uurb->endpoint & USB_ENDPOINT_DIR_MASK) != 0) {
is_in = 1;
ep = ps->dev->ep_in[uurb->endpoint & USB_ENDPOINT_NUMBER_MASK];
} else {
is_in = 0;
ep = ps->dev->ep_out[uurb->endpoint & USB_ENDPOINT_NUMBER_MASK];
}
if (!ep)
return -ENOENT;
Should it be there?
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 2 Olimex OpenOCD JTAG
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
--
Jon Smirl
jonsmirl@xxxxxxxxx
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