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USBIP driver packs URB transfer flags in network packets that are exchanged between Server (usbip_host) and Client (vhci_hcd). URB_* flags are internal to kernel and could change. Where as USBIP URB flags exchanged in network packets are USBIP user API must not change. Add USBIP_URB* flags to make this an explicit API and change the client and server to map them. Details as follows: Client tx path (USBIP_CMD_SUBMIT): - Maps URB_* to USBIP_URB_* when it sends USBIP_CMD_SUBMIT packet. Server rx path (USBIP_CMD_SUBMIT): - Maps USBIP_URB_* to URB_* when it receives USBIP_CMD_SUBMIT packet. Flags aren't included in USBIP_CMD_UNLINK and USBIP_RET_SUBMIT packets and no special handling is needed for them in the following cases: - Server rx path (USBIP_CMD_UNLINK) - Client rx path & Server tx path (USBIP_RET_SUBMIT) Update protocol documentation to reflect the change. Suggested-by: Hongren Zenithal Zheng <i@zenithal.me> Suggested-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://lore.kernel.org/r/20220824002456.94605-1-skhan@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| .. | ||
| acm.rst | ||
| authorization.rst | ||
| chipidea.rst | ||
| CREDITS | ||
| dwc3.rst | ||
| ehci.rst | ||
| functionfs.rst | ||
| gadget_configfs.rst | ||
| gadget_hid.rst | ||
| gadget_multi.rst | ||
| gadget_printer.rst | ||
| gadget_serial.rst | ||
| gadget-testing.rst | ||
| index.rst | ||
| iuu_phoenix.rst | ||
| linux-cdc-acm.inf | ||
| linux.inf | ||
| mass-storage.rst | ||
| misc_usbsevseg.rst | ||
| mtouchusb.rst | ||
| ohci.rst | ||
| raw-gadget.rst | ||
| text_files.rst | ||
| usb-help.rst | ||
| usb-serial.rst | ||
| usbdevfs-drop-permissions.c | ||
| usbip_protocol.rst | ||
| usbmon.rst | ||