Dear Mr. Greear, I come to you to ask for directions. TRIAGNOSYS Gmbh, a division of Zodiac Inflight Innovations part of the SAFRAN GROUP, participate in a research project for the ARINC CSS committee aiming at investigating the potential use of 5 GHz DFS channels in aircrafts. In order to do that, the partners in this project aim to gather information about where radar interference occurs and on which channels by monitoring DFS channels during commercial flights. Partners including AIRBUS and DELTA AIRLINES have already provided their support.
In order to monitor the DFS channels, a device based on WiFi dongles to be installed on planes is currently explored. The Linksys WUSB6100M device based on QCA9377 seems a promising choice, especially given the features proposed by the ath10k driver. The idea is to put this device in monitor mode and use the DFS pattern detector to report DFS events to userspace through cfg80211_radar_event/nl80211_radar_notify. This would require some modification in kernelspace so that the device does not switch channel upon radar detection. An application listening on a netlink socket would then retrieve the data. Therefore my question is: do you think this is possible? In the meantime, trying to use the Linksys device in STA mode does not work as the device does not manage to use DMA to allocate the tx buffer with dma_alloc_coherent in htt_tx.c. Given that it works for PCI devices, I assume that it is firmware-related but have not yet found a workaround. Do you have any ideas what might have caused this? Thank you for any time that you spend considering these questions. Best regards, Vincent Guenat. Vincent Guenat R&T Embedded Software Engineer TriaGnoSys GmbH | Zodiac Inflight Innovations P +49 8153 8867 8238 Argelsrieder Feld 22 82234 Weßling Germany www.safran-aerosystems.com ________________________________ TriaGnoSys GmbH, Registergericht: München HRB 141647, Vat.: DE 813396184 Geschäftsführer: Núria Riera Díaz, Peter Lewalter ________________________________ This email and any files transmitted with it are confidential & proprietary to Zodiac Inflight Innovations. This information is intended solely for the use of the individual or entity to which it is addressed. Access or transmittal of the information contained in this e-mail, in full or in part, to any other organization or persons is not authorized. _______________________________________________ ath10k mailing list [email protected] http://lists.infradead.org/mailman/listinfo/ath10k
