Search Linux Wireless

Re: A few questions about modifications in carl9170

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

 



On Tuesday 28 September 2010 01:23:57 Ignacy Gawedzki wrote:
> And while writing that email, I left the card plugged in the USB socket.  In
> the meantime, I got the following:
> 
>   usb 5-1: no command feedback received (-110).
>   carl9170 cmd: 08 01 00 00 04 40 1d 00 00 00 00 00              .....@......
>   usb 5-1: restart device (6)
>   ieee80211 phy1: writing reg 0x1d4004 (val 0x0) failed (-110)
>   usb 5-1: device restarted successfully.
> 
> Then when I unplugged it:
> 
>   usb 5-1: USB disconnect, address 11
> 
> And finally upon modprobe -r carl9170:
> 
>   usbcore: deregistering interface driver carl9170
> 
> And now modprobe is stuck in D+. :/

yup, this should be fixed by "[PATCH] carl9170: fix hung workqueue".
 
> I now wonder how that could possibly be due to my modifications in the driver
> and mac80211 (in a nutshell: retrieve the measurement per frame from the FW
> and collect it into a stats structure in the sta descriptor, which is later
> retrieved from userspace through netlink).  I'll try without these and report
> back if that still happens.
hm, you could also add a "custom" RADIO_TAP field. This way you could use
wireshark to monitor the round trip times for each individual frame
(this way you could also export the frames' duration + tx vectors too)

Regards,
	Christian
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Host AP]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Linux Kernel]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Samba]     [Device Mapper]
  Powered by Linux