linux-stable/include/linux/usb
Loic Poulain cac6fb015f usb: class: cdc-wdm: WWAN framework integration
The WWAN framework provides a unified way to handle WWAN/modems and its
control port(s). It has initially been introduced to support MHI/PCI
modems, offering the same control protocols as the USB variants such as
MBIM, QMI, AT... The WWAN framework exposes these control protocols as
character devices, similarly to cdc-wdm, but in a bus agnostic fashion.

This change adds registration of the USB modem cdc-wdm control endpoints
to the WWAN framework as standard control ports (wwanXpY...).

Exposing cdc-wdm through WWAN framework normally maintains backward
compatibility, e.g:
    $ qmicli --device-open-qmi -d /dev/wwan0p1QMI --dms-get-ids
instead of
    $ qmicli --device-open-qmi -d /dev/cdc-wdm0 --dms-get-ids

However, some tools may rely on cdc-wdm driver/device name for device
detection. It is then safer to keep the 'legacy' cdc-wdm character
device to prevent any breakage. This is handled in this change by
API mutual exclusion, only one access method can be used at a time,
either cdc-wdm chardev or WWAN API.

Note that unknown channel types (other than MBIM, AT or MBIM) are not
registered to the WWAN framework.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-11 16:17:56 -07:00
..
audio-v2.h
audio-v3.h
audio.h
c67x00.h
ccid.h
cdc-wdm.h usb: class: cdc-wdm: WWAN framework integration 2021-05-11 16:17:56 -07:00
cdc.h
cdc_ncm.h
ch9.h
chipidea.h
composite.h
ehci-dbgp.h
ehci_def.h
ehci_pdriver.h
ezusb.h
functionfs.h
g_hid.h
gadget.h
gadget_configfs.h
hcd.h
input.h
iowarrior.h
irda.h
isp116x.h
isp1301.h
isp1362.h
isp1760.h
m66592.h
musb-ux500.h
musb.h
net2280.h
of.h
ohci_pdriver.h
otg-fsm.h
otg.h
pd.h usb: typec: tcpm: Honour pSnkStdby requirement during negotiation 2021-04-14 16:27:29 +02:00
pd_ado.h
pd_bdo.h
pd_ext_sdb.h
pd_vdo.h
phy.h
phy_companion.h
quirks.h
r8a66597.h
r8152.h
renesas_usbhs.h
rndis_host.h
role.h
serial.h USB: serial: add generic support for TIOCSSERIAL 2021-04-08 09:46:02 +02:00
sl811.h
storage.h
tcpm.h
tegra_usb_phy.h
typec.h usb: typec: Add typec_port_register_altmodes() 2021-04-09 16:07:41 +02:00
typec_altmode.h
typec_dp.h
typec_mux.h
typec_tbt.h
uas.h
ulpi.h
usb338x.h
usb_phy_generic.h
usbnet.h
xhci-dbgp.h