Justin Hammond 6b24a0cac5 drivers/usbhost: Carry the xHCI transfer chain across the ring join. ... A transfer described by more than one TRB can reach the end of the ring part way through, so the link that sends the controller back to the beginning falls inside the transfer rather than between two of them. Written without the chain bit, that link ends the transfer where it stands: the controller follows it, considers the work finished, and reports nothing, because the TRB that asked for the completion interrupt is on the far side of the join. Nothing waiting is woken, and transfers have no timeout, so the symptom is a read that never returns. Carry the chain bit onto the link when the TRB it follows has it. Reading 1MiB from a USB drive, where the last two sizes did not complete at all before: 512 byte blocks 166 KB/s 4 KiB blocks 1333 KB/s 32 KiB blocks 10666 KB/s 64 KiB blocks 15515 KB/s Assisted-by: Claude:claude-opus-5 Signed-off-by: Justin Hammond <justin@dynam.ac>		2026-09-20 22:28:07 +08:00
..
1wire	drivers/efuse/efuse: Drivers Registered With World Write Permissions(Part 1)	2026-07-13 12:08:01 +02:00
aie	Documentation,drivers/aie: align machine learning docs with current code	2026-09-19 15:16:18 -03:00
analog	drivers/analog: add MCP445X potentiometer support	2026-08-08 18:37:08 +08:00
audio	drivers/efuse/efuse: Drivers Registered With World Write Permissions(Part 1)	2026-07-13 12:08:01 +02:00
bch	drivers/efuse/efuse: Drivers Registered With World Write Permissions(Part 1)	2026-07-13 12:08:01 +02:00
can	drivers/efuse/efuse: Drivers Registered With World Write Permissions(Part 1)	2026-07-13 12:08:01 +02:00
clk	!include/fcntl.h: align open flags with Linux values	2026-06-30 13:43:44 +08:00
contactless	drivers/contactless: fix uninitialized uid leak in mfrc522_read	2026-07-13 19:50:57 +08:00
coresight	drivers/: Multiple Drivers Are Registered With World Writable - Part 2	2026-07-15 15:27:28 +08:00
crypto	drivers/efuse/efuse: Drivers Registered With World Write Permissions(Part 1)	2026-07-13 12:08:01 +02:00
devfreq	drivers/devfreq: add ondemand governor build support	2026-08-08 15:23:54 -03:00
devicetree	include/debug.h: Move to include/nuttx/debug.h	2026-04-07 07:50:06 -03:00
dma
dummy
eeprom	drivers/eeprom: add 24CW160 support	2026-08-06 12:39:36 +02:00
efuse	drivers/efuse/efuse: Drivers Registered With World Write Permissions(Part 1)	2026-07-13 12:08:01 +02:00
i2c	drivers/efuse/efuse: Drivers Registered With World Write Permissions(Part 1)	2026-07-13 12:08:01 +02:00
i2s	drivers/efuse/efuse: Drivers Registered With World Write Permissions(Part 1)	2026-07-13 12:08:01 +02:00
i3c	nuttx/atomic: replace atomic_fetch_xxx with atomic_xxx just like zephyr	2026-08-24 13:20:45 +08:00
input	input/gt9xx: fix register write and no-contact read	2026-08-31 16:16:21 +08:00
ioexpander	ioexpander/ch422g: add a driver for the WCH CH422G I/O	2026-08-24 09:39:58 +02:00
ipcc	drivers/: Multiple Drivers Are Registered With World Writable - Part 2	2026-07-15 15:27:28 +08:00
lcd	drivers/lcd: honour the LCD_APA102_* settings in the apa102 LCD driver	2026-08-13 09:54:26 -03:00
leds	drivers/: Multiple Drivers Are Registered With World Writable - Part 2	2026-07-15 15:27:28 +08:00
loop	drivers/: Multiple Drivers Are Registered With World Writable - Part 2	2026-07-15 15:27:28 +08:00
math	drivers/: Multiple Drivers Are Registered With World Writable - Part 2	2026-07-15 15:27:28 +08:00
misc	libs/libc: Fix divide-by-zero in stat() with large filesystem block sizes	2026-07-16 23:37:22 +08:00
mmcsd	drivers/mmcsd: Switch SD cards into high speed.	2026-08-18 09:38:45 +08:00
modem	drivers/: Multiple Drivers Are Registered With World Writable - Part 2	2026-07-15 15:27:28 +08:00
motor	drivers/: Multiple Drivers Are Registered With World Writable - Part 2	2026-07-15 15:27:28 +08:00
mtd	drivers/mtd/mtd_config: fix UAF in mtdconfig_unregister_by_path	2026-09-17 11:30:34 -03:00
net	nuttx/atomic: replace atomic_fetch_xxx with atomic_xxx just like zephyr	2026-08-24 13:20:45 +08:00
note	nuttx/atomic: replace atomic_fetch_xxx with atomic_xxx just like zephyr	2026-08-24 13:20:45 +08:00
pci	drivers/pci/pci.c: fix nxstyle issues	2026-08-25 01:40:32 +08:00
pinctrl	drivers/pinctrl: Add pad read-back and a procfs entry.	2026-08-21 20:04:59 +08:00
pipes	drivers/: Multiple Drivers Are Registered With World Writable Part 3	2026-07-16 09:49:07 -03:00
power	drivers/power: Describe the regulators through procfs.	2026-08-18 17:28:02 +08:00
rc	drivers/: Multiple Drivers Are Registered With World Writable - Part 2	2026-07-15 15:27:28 +08:00
regmap	include/debug.h: Move to include/nuttx/debug.h	2026-04-07 07:50:06 -03:00
reset	nuttx/atomic: replace atomic_fetch_xxx with atomic_xxx just like zephyr	2026-08-24 13:20:45 +08:00
rf	drivers/: Multiple Drivers Are Registered With World Writable - Part 2	2026-07-15 15:27:28 +08:00
rpmsg	nuttx/atomic: replace atomic_fetch_xxx with atomic_xxx just like zephyr	2026-08-24 13:20:45 +08:00
rptun	drivers/: Multiple Drivers Are Registered With World Writable - Part 2	2026-07-15 15:27:28 +08:00
segger	cmake: Use NUTTX(_DIR/_BIN_DIR) instead CMAKE(_SRC_DIR/_BIN_DIR)	2026-08-09 11:13:08 -03:00
sensors	drivers/sensors: add Microchip TC74 temperature sensor driver	2026-09-18 16:04:32 +08:00
serial	drivers/serial/serial.c: fix nxstyle	2026-09-18 08:36:25 -03:00
spi	drivers/spi/ice40: fix operator precedence in final clock cycle count	2026-07-20 17:05:01 +08:00
syslog	syslog/ramlog: Survive writes made before the OS is ready.	2026-08-08 15:20:54 -03:00
thermal	drivers/thermal: Cool a devfreq device instead of a cpufreq policy.	2026-08-18 09:46:47 -03:00
timers	drivers/timers: Add TMRDEPPATH/TMRVPATH for PTP clock drivers.	2026-09-19 18:32:45 -03:00
usbdev	drivers/usbdev/cdcacm: serialize the TX ring drain with the class spinlock	2026-08-09 02:04:26 +08:00
usbhost	drivers/usbhost: Carry the xHCI transfer chain across the ring join.	2026-09-20 22:28:07 +08:00
usbmisc	drivers/: Multiple Drivers Are Registered With World Writable - Part 2	2026-07-15 15:27:28 +08:00
usbmonitor	include/debug.h: Move to include/nuttx/debug.h	2026-04-07 07:50:06 -03:00
usrsock	drivers/: Multiple Drivers Are Registered With World Writable - Part 2	2026-07-15 15:27:28 +08:00
vhost	include/debug.h: Move to include/nuttx/debug.h	2026-04-07 07:50:06 -03:00
video	drivers/video: zero message on MIPI DSI driver	2026-07-24 20:57:57 -03:00
virtio	drivers/input: partial fix of indistinguishable ASCII and special keycodes	2026-07-29 22:51:15 -03:00
wireless	nuttx/atomic: replace atomic_fetch_xxx with atomic_xxx just like zephyr	2026-08-24 13:20:45 +08:00
.gitignore
CMakeLists.txt
drivers_initialize.c	driver/devfreq: add procfs for devfreq	2026-08-08 15:23:54 -03:00
Kconfig	driver/devfreq: DVFS framework for devices	2026-08-08 15:23:54 -03:00
Makefile	driver/devfreq: DVFS framework for devices	2026-08-08 15:23:54 -03:00