78a4d032ec
Changes in 4.19.203 Revert "ACPICA: Fix memory leak caused by _CID repair function" ALSA: seq: Fix racy deletion of subscriber ARM: imx: add missing iounmap() ARM: dts: colibri-imx6ull: limit SDIO clock to 25MHz ALSA: usb-audio: fix incorrect clock source setting clk: stm32f4: fix post divisor setup for I2S/SAI PLLs omap5-board-common: remove not physically existing vdds_1v8_main fixed-regulator scsi: sr: Return correct event when media event code is 3 media: videobuf2-core: dequeue if start_streaming fails net: natsemi: Fix missing pci_disable_device() in probe and remove sctp: move the active_key update after sh_keys is added nfp: update ethtool reporting of pauseframe control net: ipv6: fix returned variable type in ip6_skb_dst_mtu mips: Fix non-POSIX regexp bnx2x: fix an error code in bnx2x_nic_load() net: pegasus: fix uninit-value in get_interrupt_interval net: fec: fix use-after-free in fec_drv_remove net: vxge: fix use-after-free in vxge_device_unregister blk-iolatency: error out if blk_get_queue() failed in iolatency_set_limit() Bluetooth: defer cleanup of resources in hci_unregister_dev() USB: usbtmc: Fix RCU stall warning USB: serial: option: add Telit FD980 composition 0x1056 USB: serial: ch341: fix character loss at high transfer rates USB: serial: ftdi_sio: add device ID for Auto-M3 OP-COM v2 firmware_loader: use -ETIMEDOUT instead of -EAGAIN in fw_load_sysfs_fallback firmware_loader: fix use-after-free in firmware_fallback_sysfs ALSA: usb-audio: Add registration quirk for JBL Quantum 600 usb: gadget: f_hid: added GET_IDLE and SET_IDLE handlers usb: gadget: f_hid: fixed NULL pointer dereference usb: gadget: f_hid: idle uses the highest byte for duration usb: otg-fsm: Fix hrtimer list corruption scripts/tracing: fix the bug that can't parse raw_trace_func tracing / histogram: Give calculation hist_fields a size tracing/histogram: Rename "cpu" to "common_cpu" optee: Clear stale cache entries during initialization staging: rtl8723bs: Fix a resource leak in sd_int_dpc media: rtl28xxu: fix zero-length control request pipe: increase minimum default pipe size to 2 pages ext4: fix potential htree corruption when growing large_dir directories serial: 8250: Mask out floating 16/32-bit bus bits MIPS: Malta: Do not byte-swap accesses to the CBUS UART pcmcia: i82092: fix a null pointer dereference bug KVM: x86: accept userspace interrupt only if no event is injected KVM: x86/mmu: Fix per-cpu counter corruption on 32-bit builds spi: meson-spicc: fix memory leak in meson_spicc_remove perf/x86/amd: Don't touch the AMD64_EVENTSEL_HOSTONLY bit inside the guest qmi_wwan: add network device usage statistics for qmimux devices libata: fix ata_pio_sector for CONFIG_HIGHMEM reiserfs: add check for root_inode in reiserfs_fill_super reiserfs: check directory items on read from disk alpha: Send stop IPI to send to online CPUs net/qla3xxx: fix schedule while atomic in ql_wait_for_drvr_lock and ql_adapter_reset ARM: imx: add mmdc ipg clock operation for mmdc Linux 4.19.203 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I4adcce1092ab000faec667eda6cf569e7a269562
To understand all the Linux-USB framework, you'll use these resources:
* This source code. This is necessarily an evolving work, and
includes kerneldoc that should help you get a current overview.
("make pdfdocs", and then look at "usb.pdf" for host side and
"gadget.pdf" for peripheral side.) Also, Documentation/usb has
more information.
* The USB 2.0 specification (from www.usb.org), with supplements
such as those for USB OTG and the various device classes.
The USB specification has a good overview chapter, and USB
peripherals conform to the widely known "Chapter 9".
* Chip specifications for USB controllers. Examples include
host controllers (on PCs, servers, and more); peripheral
controllers (in devices with Linux firmware, like printers or
cell phones); and hard-wired peripherals like Ethernet adapters.
* Specifications for other protocols implemented by USB peripheral
functions. Some are vendor-specific; others are vendor-neutral
but just standardized outside of the www.usb.org team.
Here is a list of what each subdirectory here is, and what is contained in
them.
core/ - This is for the core USB host code, including the
usbfs files and the hub class driver ("hub_wq").
host/ - This is for USB host controller drivers. This
includes UHCI, OHCI, EHCI, and others that might
be used with more specialized "embedded" systems.
gadget/ - This is for USB peripheral controller drivers and
the various gadget drivers which talk to them.
Individual USB driver directories. A new driver should be added to the
first subdirectory in the list below that it fits into.
image/ - This is for still image drivers, like scanners or
digital cameras.
../input/ - This is for any driver that uses the input subsystem,
like keyboard, mice, touchscreens, tablets, etc.
../media/ - This is for multimedia drivers, like video cameras,
radios, and any other drivers that talk to the v4l
subsystem.
../net/ - This is for network drivers.
serial/ - This is for USB to serial drivers.
storage/ - This is for USB mass-storage drivers.
class/ - This is for all USB device drivers that do not fit
into any of the above categories, and work for a range
of USB Class specified devices.
misc/ - This is for all USB device drivers that do not fit
into any of the above categories.