> -----Original Message----- > From: linux-usb-owner@xxxxxxxxxxxxxxx [mailto:linux-usb- > owner@xxxxxxxxxxxxxxx] On Behalf Of Greg KH > Sent: Thursday, December 11, 2014 4:18 AM > To: ivo welch > Cc: linux-usb; sgowdy+usbweb@xxxxxxxxx > Subject: Re: Learning USB Programming on Linux > > On Thu, Dec 11, 2014 at 10:54:13AM +0800, ivo welch wrote: > > thank you, greg. if linux-usb is the wrong starter, can you > > recommend some pointers to good starter documentation and books > about > > writing user-space USB programs? (is it really "read the linux > kernel > > source"??) > > I don't know of any, sorry. In addition to my last email I have couple of links which may be a good place to start to learn about USB gadget: Andrzej presentation[1] about basics of USB and base usb configuration using configfs. It's a wiki page[2] which describes how to Create your own usb gadget using configfs interface. My presentation[3] which shows configfs configuration and how to usb libusbg API and it's feature gadget schemes. To begin I recommend slides 1-39, rest may be too complicated for beginning. More over if you would like to create your first gadget I recommend gadget schemes usage[4]. You will need to create simple configuration file and then use gadget-import example to set it up on your BBB. If you will find some missing functionality or bugs in libusbg, some of them may be already implemented/fixed in my repository[5] on devel_* branch or in pull requests for the official one[6]. Footnotes: 1 - http://events.linuxfoundation.org/sites/events/files/slides/LinuxConNA-M ake-your-own-USB-gadget-Andrzej.Pietrasiewicz.pdf 2 - https://wiki.tizen.org/wiki/USB/Linux_USB_Layers/Configfs_Composite_Gadg et 3 - http://events.linuxfoundation.org/sites/events/files/slides/Tame_the_USB _gadgets_takative_beast_Opasiak_Krzysztof_0.pdf 4 - https://github.com/kopasiak/libusbg/blob/master/doc/gadget_schemes.txt 5 - https://github.com/kopasiak/libusbg 6 - https://github.com/libusbg/libusbg -- Best regards, Krzysztof Opasiak Samsung R&D Institute Poland Samsung Electronics k.opasiak@xxxxxxxxxxx -- 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
