Function crosvm_control::crosvm_client_usb_attach

#[no_mangle]
pub unsafe extern "C" fn crosvm_client_usb_attach(
    socket_path: *const c_char,
    _bus: u8,
    _addr: u8,
    _vid: u16,
    _pid: u16,
    dev_path: *const c_char,
    out_port: *mut u8
) -> bool

Attaches an USB device to crosvm instance whose control socket is listening on socket_path.

The function returns the amount of entries written.

Arguments

• socket_path - Path to the crosvm control socket
• bus - USB device bus ID (unused)
• addr - USB device address (unused)
• vid - USB device vendor ID (unused)
• pid - USB device product ID (unused)
• dev_path - Path to the USB device (Most likely /dev/bus/usb/<bus>/<addr>).
• out_port - (optional) internal port will be written here if provided.

The function returns true on success or false if an error occurred.

Safety

Function is unsafe due to raw pointer usage. Trivial !raw_pointer.is_null() checks prevent some unsafe behavior, but the caller should ensure no null pointers are passed into the function.

The safety requirements for socket_path and dev_path are the same as the ones from CStr::from_ptr(). out_port should be a non-null pointer that points to a writable 1byte region.