On Wed, 15 Jan 2003, David Brownell wrote: >oliverthered wrote: >> On Wed, 2003-01-15 at 17:42, David Brownell wrote: >> >>>>+ if(!(ep_desc = usb_epnum_to_ep_desc(ps->dev, uurb.endpoint))) >>>>+ return -ENOENT; >>>>+ interval = ep_desc->bInterval; >>>>+ >>> >>>Shouldn't it be "interval = 1 << (ep_desc->bInterval -1);" instead? >>>For iso, bInterval is always a log2 encoding. >> >> >> Is this also true for interrupt or just ISO? > >What it says in the USB 2.0 spec: true for high speed interrupt >as well as all ISO endpoints. > >Full and low speed interrupt endpoints use a linear encoding >(with an effective max interval 128msec).
Hmm, so should the conversion from bInterval to ms-interval happen in the driver, or in the core? It seems to me that it would be better to handle that conversion in the core...? -- Dan Streetman [EMAIL PROTECTED] --------------------- 186,272 miles per second: It isn't just a good idea, it's the law! ------------------------------------------------------- This SF.NET email is sponsored by: A Thawte Code Signing Certificate is essential in establishing user confidence by providing assurance of authenticity and code integrity. Download our Free Code Signing guide: http://ads.sourceforge.net/cgi-bin/redirect.pl?thaw0028en _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
