Files
kernel_xiaomi_sm8250/drivers/usb
Greg Kroah-Hartman 4f94b88d7d Merge 4.19.324 into android-4.19-stable
Changes in 4.19.324
	arm64: dts: rockchip: Fix rt5651 compatible value on rk3399-sapphire-excavator
	ARM: dts: rockchip: fix rk3036 acodec node
	ARM: dts: rockchip: drop grf reference from rk3036 hdmi
	ARM: dts: rockchip: Fix the realtek audio codec on rk3036-kylin
	HID: core: zero-initialize the report buffer
	security/keys: fix slab-out-of-bounds in key_task_permission
	sctp: properly validate chunk size in sctp_sf_ootb()
	can: c_can: fix {rx,tx}_errors statistics
	net: hns3: fix kernel crash when uninstalling driver
	media: stb0899_algo: initialize cfr before using it
	media: dvbdev: prevent the risk of out of memory access
	media: dvb_frontend: don't play tricks with underflow values
	media: adv7604: prevent underflow condition when reporting colorspace
	ALSA: firewire-lib: fix return value on fail in amdtp_tscm_init()
	media: s5p-jpeg: prevent buffer overflows
	media: cx24116: prevent overflows on SNR calculus
	media: v4l2-tpg: prevent the risk of a division by zero
	drm/amdgpu: add missing size check in amdgpu_debugfs_gprwave_read()
	drm/amdgpu: prevent NULL pointer dereference if ATIF is not supported
	dm cache: correct the number of origin blocks to match the target length
	dm cache: fix out-of-bounds access to the dirty bitset when resizing
	dm cache: optimize dirty bit checking with find_next_bit when resizing
	dm cache: fix potential out-of-bounds access on the first resume
	dm-unstriped: cast an operand to sector_t to prevent potential uint32_t overflow
	nfs: Fix KMSAN warning in decode_getfattr_attrs()
	btrfs: reinitialize delayed ref list after deleting it from the list
	bonding (gcc13): synchronize bond_{a,t}lb_xmit() types
	net: bridge: xmit: make sure we have at least eth header len bytes
	media: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_format
	fs/proc: fix compile warning about variable 'vmcore_mmap_ops'
	usb: musb: sunxi: Fix accessing an released usb phy
	USB: serial: io_edgeport: fix use after free in debug printk
	USB: serial: qcserial: add support for Sierra Wireless EM86xx
	USB: serial: option: add Fibocom FG132 0x0112 composition
	USB: serial: option: add Quectel RG650V
	irqchip/gic-v3: Force propagation of the active state with a read-back
	ocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove()
	ALSA: pcm: Return 0 when size < start_threshold in capture
	ALSA: usb-audio: Add custom mixer status quirks for RME CC devices
	ALSA: usb-audio: Support jack detection on Dell dock
	ALSA: usb-audio: Add quirks for Dell WD19 dock
	hv_sock: Initializing vsk->trans to NULL to prevent a dangling pointer
	vsock/virtio: Initialization of the dangling pointer occurring in vsk->trans
	ALSA: usb-audio: Add endianness annotations
	9p: Avoid creating multiple slab caches with the same name
	HID: multitouch: Add quirk for HONOR MagicBook Art 14 touchpad
	bpf: use kvzmalloc to allocate BPF verifier environment
	sound: Make CONFIG_SND depend on INDIRECT_IOMEM instead of UML
	powerpc/powernv: Free name on error in opal_event_init()
	fs: Fix uninitialized value issue in from_kuid and from_kgid
	net: usb: qmi_wwan: add Fibocom FG132 0x0112 composition
	9p: fix slab cache name creation for real
	Linux 4.19.324

Change-Id: Ib8e7c89304d2c2cc72aea03446ea40a8704b41ec
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2024-11-17 20:02:03 +00:00
..

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.