plumiop.blogg.se - Usb led badge driver

(on/off) ean Debugging information files.

For more information, see and the kernel DocBook documentation for this API. (If you use modular gadget drivers, you may configure more than one.) If in doubt, say "N" and don't enable these drivers most people don't have this kind of hardware (except maybe inside Linux PDAs). Configure one hardware driver for your peripheral/device side bus controller, and a "gadget driver" for your peripheral protocol. Enable this configuration option if you want to run Linux inside a USB peripheral device. The more familiar host side controllers have names like like "EHCI", "OHCI", or "UHCI", and are usually integrated into southbridges on PC motherboards. Peripheral controllers are often discrete silicon, or are integrated with the CPU in a microcontroller. In both cases you need a low level bus controller driver, and some software talking to it.

Linux can run in the host, or in the peripheral. The USB hardware is asymmetric, which makes it easier to set up: you can't connect a "to-the-host" connector to a peripheral.

(on/off/module) Support for USB Gadgets USB is a master/slave protocol, organized with one master host (such as a PC) controlling up to 127 peripheral devices.With help from a special transceiver and a "Mini-AB" jack, systems with both kinds of controller can also support "USB On-the-Go" (CONFIG_USB_OTG). Some systems have both kinds of of controller. Peripherals (like PDAs) need CONFIG_USB_GADGET (with "B" jacks). NOTE: Gadget support ** DOES NOT ** depend on host-side CONFIG_USB !! - Host systems (like PCs) need CONFIG_USB (with "A" jacks). USB Gadget support on a system involves (a) a peripheral controller, and (b) the gadget driver using it. Howto configure the Linux kernel / drivers / usb / gadget