Re: xhci usb serial open/close issue

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Greg,

To debug i have put some printk inside this xhci_handle_event() function

for example:
xhci_handle_event(){
             .....
            ........
       case TRB_TYPE(TRB_COMPLETION):
              +  printk(KERN_EMERG "TRB_COMPLETION info
:%d",le32_to_cpu(event->event_cmd.flags) & TRB_TYPE_BITMASK);
                handle_cmd_completion(xhci, &event->event_cmd);
                break;
        case TRB_TYPE(TRB_TRANSFER):
               + printk(KERN_EMERG "TRB_TRANSFER info
:%d",le32_to_cpu(event->event_cmd.flags) & TRB_TYPE_BITMASK);
                ret = handle_tx_event(xhci, &event->trans_event);
                if (ret < 0)
                        xhci->error_bitmask |= 1 << 9;
                else
                        update_ptrs = 0;
                break;

}

Now i am not getting any error with the same script .but i need to
give some clarification on this.

What may be the reason that error is not coming now??


Thanks
Shishir




On Wed, Jun 15, 2016 at 5:18 PM, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> On Wed, Jun 15, 2016 at 11:45:36AM +0530, shishir tiwari wrote:
>> Hi Greg,
>>
>> What kernel version is this?
>> >>>kernel - 3..4.14 ported on ARM custom board.
>
> Ouch that is old and obsolete, can you please try 4.6 and see if the
> same error happens there?  Lots and lots of xhci and other kernel
> changes have happened in the many years since 3.4 was released.  Not
> much we can do about such an old kernel here, sorry.
>
> greg k-h
--
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



[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux