Justin Hammond f8ea0f3d02 drivers/usbhost: Copy an xHCI stand-in buffer in the caller's context. ... The copy out of a stand-in was done in the completion handler, which runs on a work queue, while the buffer it copies into may belong to a user process whose addresses mean nothing there. Reading a block device directly from a user program faulted. The caller is blocked until the transfer finishes, so the copy belongs there. An asynchronous transfer has no blocked caller to come back to, so a buffer that would need a stand-in is refused for that path. Its callers are class drivers using kernel memory, which do not need one. The refusal is lifted once the completion path can do the copy itself. Assisted-by: Claude:claude-opus-5 Signed-off-by: Justin Hammond <justin@dynam.ac>		2026-09-20 22:28:07 +08:00
..
CMakeLists.txt	drivers/usbhost: Separate the xHCI driver from the PCI bus.	2026-08-18 09:35:23 -03:00
hid_parser.c	include/debug.h: Move to include/nuttx/debug.h	2026-04-07 07:50:06 -03:00
Kconfig	drivers/usbhost: Separate the xHCI driver from the PCI bus.	2026-08-18 09:35:23 -03:00
Make.defs	drivers/usbhost: Separate the xHCI driver from the PCI bus.	2026-08-18 09:35:23 -03:00
usbhost_bthci.c	include/debug.h: Move to include/nuttx/debug.h	2026-04-07 07:50:06 -03:00
usbhost_cdcacm.c	include/debug.h: Move to include/nuttx/debug.h	2026-04-07 07:50:06 -03:00
usbhost_cdcecm.c	drivers/usbhost/usbhost_cdcecm.c: Converted CDC-ECM to lower half	2026-05-06 06:20:03 +08:00
usbhost_cdcmbim.c	drivers/: Multiple Drivers Are Registered With World Writable - Part 2	2026-07-15 15:27:28 +08:00
usbhost_composite.c	include/debug.h: Move to include/nuttx/debug.h	2026-04-07 07:50:06 -03:00
usbhost_composite.h
usbhost_devaddr.c	include/debug.h: Move to include/nuttx/debug.h	2026-04-07 07:50:06 -03:00
usbhost_drivers.c	include/debug.h: Move to include/nuttx/debug.h	2026-04-07 07:50:06 -03:00
usbhost_enumerate.c	usbhost: Report each device as it is enumerated.	2026-08-09 02:09:47 +08:00
usbhost_findclass.c	include/debug.h: Move to include/nuttx/debug.h	2026-04-07 07:50:06 -03:00
usbhost_ft232r.c	include/debug.h: Move to include/nuttx/debug.h	2026-04-07 07:50:06 -03:00
usbhost_hidkbd.c	drivers/usbhost: Do not unregister a HID keyboard that never registered.	2026-08-09 20:57:41 +08:00
usbhost_hidmouse.c	drivers/: Multiple Drivers Are Registered With World Writable - Part 2	2026-07-15 15:27:28 +08:00
usbhost_hub.c	arch/arm/src/stm32h5/stm32_usbdrdhost.c: Fixed Hub support	2026-04-19 14:24:40 +08:00
usbhost_max3421e.c	include/debug.h: Move to include/nuttx/debug.h	2026-04-07 07:50:06 -03:00
usbhost_registerclass.c	drivers/usbhost: Refuse to register the same class driver twice.	2026-08-08 14:55:34 -03:00
usbhost_registry.c	drivers/usbhost: Use small lock to protect usbhost common function	2025-12-13 12:39:48 +08:00
usbhost_registry.h	drivers/usbhost: Use small lock to protect usbhost common function	2025-12-13 12:39:48 +08:00
usbhost_skeleton.c	include/debug.h: Move to include/nuttx/debug.h	2026-04-07 07:50:06 -03:00
usbhost_storage.c	drivers/usbhost: Register the partitions on a mass storage device.	2026-08-08 14:40:52 -03:00
usbhost_trace.c	include/debug.h: Move to include/nuttx/debug.h	2026-04-07 07:50:06 -03:00
usbhost_waiter.c	include/debug.h: Move to include/nuttx/debug.h	2026-04-07 07:50:06 -03:00
usbhost_xboxcontroller.c	drivers/: Multiple Drivers Are Registered With World Writable - Part 2	2026-07-15 15:27:28 +08:00
usbhost_xhci.c	drivers/usbhost: Copy an xHCI stand-in buffer in the caller's context.	2026-09-20 22:28:07 +08:00
usbhost_xhci.h	drivers/usbhost: Describe devices to an xHCI controller correctly.	2026-09-20 22:28:07 +08:00
usbhost_xhci_pci.c	drivers/usbhost: Separate the xHCI driver from the PCI bus.	2026-08-18 09:35:23 -03:00
usbhost_xhci_trace.c	drivers/usbhost: Correct the xHCI controller name in a trace string.	2026-08-08 14:55:00 -03:00
usbhost_xhci_trace.h	drivers/usbhost: Define the xHCI endpoint-allocation trace.	2026-08-08 14:55:00 -03:00