# # UWB device configuration # menuconfig UWB tristate "Ultra Wideband devices" default n help UWB is a high-bandwidth, low-power, point-to-point radio technology using a wide spectrum (3.1-10.6GHz). It is optimized for in-room use (480Mbps at 2 meters, 110Mbps at 10m). It serves as the transport layer for other protocols, such as Wireless USB (WUSB). The topology is peer to peer; however, higher level protocols (such as WUSB) might impose a master/slave relationship. Say Y here if your computer has UWB radio controllers (USB or PCI) based. You will need to enable the radio controllers below. It is ok to select all of them, no harm done. For more help check the UWB and WUSB related files in . To compile the UWB stack as a module, choose M here. if UWB config UWB_HWA tristate "UWB Radio Control driver for WUSB-compliant USB dongles (HWA)" depends on USB help This driver enables the radio controller for HWA USB devices. HWA stands for Host Wire Adapter, and it is a UWB Radio Controller connected to your system via USB. Most of them come with a Wireless USB host controller also. To compile this driver select Y (built in) or M (module). It is safe to select any even if you do not have the hardware. config UWB_WHCI tristate "UWB Radio Control driver for WHCI-compliant cards" depends on PCI help This driver enables the radio controller for WHCI cards. WHCI is a specification developed by Intel (http://www.intel.com/technology/comms/wusb/whci.htm) much in the spirit of USB's EHCI, but for UWB and Wireless USB radio/host controllers connected via memory mapping (eg: PCI). Most of these cards come also with a Wireless USB host controller. To compile this driver select Y (built in) or M (module). It is safe to select any even if you do not have the hardware. config UWB_I1480U tristate "Support for Intel Wireless UWB Link 1480 HWA" depends on UWB_HWA select FW_LOADER help This driver enables support for the i1480 when connected via USB. It consists of a firmware uploader that will enable it to behave as an HWA device. To compile this driver select Y (built in) or M (module). It is safe to select any even if you do not have the hardware. endif # UWB value='nds-private-remove'/>
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authorSteven Rostedt (VMware) <rostedt@goodmis.org>2017-01-30 19:27:10 -0500
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2017-01-31 09:13:49 -0500
commit79c6f448c8b79c321e4a1f31f98194e4f6b6cae7 (patch)
tree370efda701f03cccf21e02bb1fdd3b852547d75c /tools/testing/selftests/net
parent0c744ea4f77d72b3dcebb7a8f2684633ec79be88 (diff)
tracing: Fix hwlat kthread migration
The hwlat tracer creates a kernel thread at start of the tracer. It is pinned to a single CPU and will move to the next CPU after each period of running. If the user modifies the migration thread's affinity, it will not change after that happens. The original code created the thread at the first instance it was called, but later was changed to destroy the thread after the tracer was finished, and would not be created until the next instance of the tracer was established. The code that initialized the affinity was only called on the initial instantiation of the tracer. After that, it was not initialized, and the previous affinity did not match the current newly created one, making it appear that the user modified the thread's affinity when it did not, and the thread failed to migrate again. Cc: stable@vger.kernel.org Fixes: 0330f7aa8ee6 ("tracing: Have hwlat trace migrate across tracing_cpumask CPUs") Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'tools/testing/selftests/net')