| menuconfig USB |
| bool "USB support" |
| ---help--- |
| Universal Serial Bus (USB) is a specification for a serial bus |
| subsystem which offers higher speeds and more features than the |
| traditional PC serial port. The bus supplies power to peripherals |
| and allows for hot swapping. Up to 127 USB peripherals can be |
| connected to a single USB host in a tree structure. |
| |
| The USB host is the root of the tree, the peripherals are the |
| leaves and the inner nodes are special USB devices called hubs. |
| Most PCs now have USB host ports, used to connect peripherals |
| such as scanners, keyboards, mice, modems, cameras, disks, |
| flash memory, network links, and printers to the PC. |
| |
| Say Y here if your device has an USB port, either host, peripheral or |
| dual-role. |
| |
| For an USB host port, you then need to say Y to at least one of the |
| Host Controller Driver (HCD) options below. Choose a USB 1.1 |
| controller, such as "UHCI HCD support" or "OHCI HCD support", |
| and "EHCI HCD (USB 2.0) support" except for older systems that |
| do not have USB 2.0 support. It doesn't normally hurt to select |
| them all if you are not certain. |
| |
| If your system has a device-side USB port, used in the peripheral |
| side of the USB protocol, see the "USB Gadget" framework instead. |
| |
| After choosing your HCD, then select drivers for the USB peripherals |
| you'll be using. You may want to check out the information provided |
| in <file:Documentation/usb/> and especially the links given in |
| <file:Documentation/usb/usb-help.txt>. |
| |
| if USB |
| |
| config DM_USB |
| bool "Enable driver model for USB" |
| depends on USB && DM |
| help |
| Enable driver model for USB. The USB interface is then implemented |
| by the USB uclass. Multiple USB controllers of different types |
| (XHCI, EHCI) can be attached and used. The 'usb' command works as |
| normal. OCHI is not supported at present. |
| |
| Much of the code is shared but with this option enabled the USB |
| uclass takes care of device enumeration. USB devices can be |
| declared with the U_BOOT_USB_DEVICE() macro and will be |
| automatically probed when found on the bus. |
| |
| source "drivers/usb/host/Kconfig" |
| |
| source "drivers/usb/musb-new/Kconfig" |
| |
| source "drivers/usb/emul/Kconfig" |
| |
| comment "USB peripherals" |
| |
| config USB_STORAGE |
| bool "USB Mass Storage support" |
| ---help--- |
| Say Y here if you want to connect USB mass storage devices to your |
| board's USB port. |
| |
| config USB_KEYBOARD |
| bool "USB Keyboard support" |
| ---help--- |
| Say Y here if you want to use a USB keyboard for U-Boot command line |
| input. |
| |
| if USB_KEYBOARD |
| |
| choice |
| prompt "USB keyboard polling" |
| optional |
| ---help--- |
| Enable a polling mechanism for USB keyboard. |
| |
| config SYS_USB_EVENT_POLL |
| bool "Interrupt polling" |
| |
| config SYS_USB_EVENT_POLL_VIA_INT_QUEUE |
| bool "Poll via interrupt queue" |
| |
| config SYS_USB_EVENT_POLL_VIA_CONTROL_EP |
| bool "Poll via control EP" |
| |
| endchoice |
| |
| endif |
| |
| endif |