Hi Maynard, On 1/23/2019 10:52 AM, Maynard CABIENTE wrote: > Hi Minas, > > On Wednesday, January 23, 2019 1:42 AM, Minas Harutyunyan wrote: >> >> Can you provide USB trace for above fragment. >> > > Is it ok to have a 14MB attachment on this e-mail list? My USB trace was taken using the Ellisys USB Analyzer. It requires that you download their Windows software from the link below. > > https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ellisys.com_products_download_visualusb.msi&d=DwIGaQ&c=DPL6_X_6JkXFx7AXWqB0tg&r=6z9Al9FrHR_ZqbbtSAsD16pvOL2S3XHxQnSzq8kusyI&m=fXiPHw02bpsbWd_XDXMadw6hUDHVI5edoC0KTfOCXMY&s=uPh-rv8gxXBEqO_u_RluWjXYblj7kjEcCBPaEVGS7pw&e= > > Please let me know if I should go ahead and attach it here. > I don't know about email attachments size limits. Actually, you can truncate (save as required parts) whole USB trace. But before it, could you please add some debug print in dwc2_hsotg_suspend() function. I suspect that host side autosuspend mass storage device(s) this is why dwc2 driver complete request with ERROR: -108. Based on debug log: [ 368.964378] dwc2 ffb40000.usb: dwc2_hsotg_ep_queue: [req ce60a380] ep1 out: 512@ce188000, noi=0, zero=0, snok=0 (new CBW for ep1) [ 368.967886] configfs-gadget gadget: End Point Request ERROR: -108 <-- ERROR DUE TO USB DATA TRANSMITTED TO INCORRECT USB EP I see >3ms inactivity which can be reason to suspend bus. If my assumption is correct then you can disable autosuspend feature of connected devices. > Thanks, > Maynard > > > ________________________________ > > Ce message, ainsi que tous les fichiers joints à ce message, peuvent contenir des informations sensibles et/ ou confidentielles ne devant pas être divulguées. Si vous n'êtes pas le destinataire de ce message (ou que vous recevez ce message par erreur), nous vous remercions de le notifier immédiatement à son expéditeur, et de détruire ce message. Toute copie, divulgation, modification, utilisation ou diffusion, non autorisée, directe ou indirecte, de tout ou partie de ce message, est strictement interdite. > > > This e-mail, and any document attached hereby, may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized, direct or indirect, copying, disclosure, distribution or other use of the material or parts thereof is strictly forbidden. >