[linux-usb-devel] Max usb_request length?
Hi, I tried to get my hands on USB gadget driver recently, but there are things I can't figure out through documents I can get. There is a length field in the usb_request structure. It is filled by upper gadget layer (fs, serial, etc.). However, I can't find maximum limit for this field, or if we can define a limit for it in udc driver. Does it mean gadget layer may generate transfer requests of any size? Thanks in advance. -- Leo Li Metrowerks -- Freescale Semiconductor [EMAIL PROTECTED] --- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477alloc_id=16492op=click ___ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
Re: [linux-usb-devel] Max usb_request length?
On Fri, 24 Jun 2005, Li Yang-r58472 wrote: Hi, I tried to get my hands on USB gadget driver recently, but there are things I can't figure out through documents I can get. There is a length field in the usb_request structure. It is filled by upper gadget layer (fs, serial, etc.). However, I can't find maximum limit for this field, or if we can define a limit for it in udc driver. Does it mean gadget layer may generate transfer requests of any size? That's right. You're subject only to the limit of available memory. Alan Stern --- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477alloc_id=16492op=click ___ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
