On Sun, 28 Dec 2008 20:30:51 +0100, Michelle Konzack <linux4michelle@xxxxxxxxxxxxxxx> wrote: > But then I do not know, IF I need only one OUTPUT Endpoint, or do I need > 4 Endpoints (one for the normal ATX PSU, and three for the expansion > slots). This just makes no sense. Endpoints are there just to identify the USB transport addresses within a class protocol, so I don't see under what condition their number would have anything to do with the number of PSUs in a UPS. I don't know anything about the details of HID, but most likely you either need several reports in the single HID device (one or several per every slot), or several interfaces (each of which carries two endpoints, coincidentially). The latter is called a "composite device", and is normally used for something that combines functions (a keyboard with SD slot has three interfaces: 1 HID for PS/2 mouse, 1 HID for keyboard, 1 storage). I don't think usbmon would help you to design the correct number of interfaces of a device. Stop trying to reverse-engineer Linux with usbmon, all the source code is open and available. You are better off adding printk() into places of interest. -- Pete -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
