Hello Ricardo, It does build and I have verified that it works fine with g_mass_storage and g_zero. However it does not seem to work with gadgetfs. Here are the kernel messages I get when I load udc-core.ko, net2280.ko and gadgetfs.ko and then mkdir /dev/gadget mount -t gadgetfs none /dev/gadget [ 96.023408] net2280 0000:04:00.0: usb_reset_338x: Defect 7374 FsmValue 0xf0000000 [ 96.023436] net2280 0000:04:00.0: usb_reinit_338x: Defect 7374 FsmValue f0000000 [ 96.023508] net2280 0000:04:00.0: irq 52 for MSI/MSI-X [ 96.023587] net2280 0000:04:00.0: PLX NET228x/USB338x USB Peripheral Controller [ 96.023593] net2280 0000:04:00.0: irq 52, pci mem ffffc90004e84000, chip rev 00ab [ 96.023597] net2280 0000:04:00.0: version: 2005 Sept 27/v3.0; dma enabled enhanced mode [ 96.023601] usb_add_gadget_udc_release [ 96.030691] gadgetfs: USB Gadget filesystem, version 24 Aug 2004 [ 96.034381] udc 0000:04:00.0: registering UDC driver [(null)] At that point gadgetfs is mounted and there is a 0 length /dev/gadget/net2280 file. If I then run the gadgetfs example program (www.linux-usb.org/gadget/usb.c) I get the following kernel messages [ 109.846832] udc 0000:04:00.0: registering UDC driver [USB Gadget filesystem] [ 109.846865] gadgetfs: bound to net2280 driver [ 109.846868] usb_gadget_udc_start [ 109.846876] net2280 0000:04:00.0: Operate Defect 7374 workaround soft this time [ 109.846880] net2280 0000:04:00.0: It will operate on cold-reboot and SS connect [ 109.846975] net2280 0000:04:00.0: ep0_start_338x: Defect 7374 FsmValue 10000000 At that point, there are the 0 length /dev/gadget/net2280 file as well as 0 length /dev/gadget/ep-a through /dev/gadget/ep-h files representing the endpoints. Then if I connect the gadget to a USB host, the example program terminates because it gets a -EINVAL return from the read function call in ep0_thread. There are the following kernel messages. [ 917.671457] gadgetfs: connected [ 917.671634] usb_gadget_remove_driver [ 917.671647] gadgetfs 0000:04:00.0: unregistering UDC driver [net2280] [ 917.671693] gadgetfs: disconnected [ 917.671732] usb_gadget_udc_stop [ 917.671743] net2280 0000:04:00.0: usb_reset_338x: Defect 7374 FsmValue 0x20000000 [ 917.671788] net2280 0000:04:00.0: usb_reinit_338x: Defect 7374 FsmValue 20000000 Any ideas would be gratefully received. Thank you, Carolyn -----Original Message----- From: Ricardo Ribalda Delgado [mailto:ricardo.ribalda@xxxxxxxxx] Sent: Monday, February 02, 2015 1:47 AM To: Smith, Carolyn J; Linux USB Mailing List Subject: Re: net2280 driver and gadgetfs? Hello Carolyn I have tried using g_mass_storage and g_network, but I cannot see why it should not work with gadgetfs. What is exactly the issue? It does not build? it does not behave as expected? I am putting the linux-usb mailing list on cc Regards! On Sat, Jan 31, 2015 at 12:06 AM, Smith, Carolyn J <carolyn.j.smith@xxxxxxxxxxxxx> wrote: > Hello Ricardo, > > > > I am working on a board with the PLX3380 chip on it. Thank you very > much for your work on integrating support for this chip into the Linux > net2280 driver. > > > > Have you used the driver successfully with the gadgetfs filesystem at all? > Or do you know of anyone who has? I'm not having any luck getting the > gadgetfs example at www.linux-usb.org/gadget/usb.c working properly with it. > > > > Thank you for any help or suggestions you can provide, > > Carolyn Smith > > Tektronix, Inc. > > > > -- Ricardo Ribalda ��.n��������+%������w��{.n�����{���)�� jg��� �����ݢj����G���� ���j:+v���w�m������w�������h�����٥
