HI, On Thu, Aug 06, 2015 at 09:40:26AM +0200, Yegor Yefremov wrote: > I performed a stress test with several FT4232H chips connected to a how many ? > hub, that is attached to one of the musb ports. So far the test was > successful for several hours. But I've seen following warnings: > > musb_host_rx 1973: Rx interrupt with no errors or packet! > musb_ep_program 931: broken !rx_reinit, ep5 csr 0203 > musb_host_rx 1973: Rx interrupt with no errors or packet! > musb_host_rx 1973: Rx interrupt with no errors or packet! > musb_host_rx 1973: Rx interrupt with no errors or packet! > musb_host_rx 1973: Rx interrupt with no errors or packet! > musb_ep_program 931: broken !rx_reinit, ep5 csr 0003 > musb_host_rx 1973: Rx interrupt with no errors or packet! > musb_ep_program 931: broken !rx_reinit, ep7 csr 0003 > > Is this expected behavior? no, that shouldn't happen, but it does and, apparently, in more than one implementation. Wondering if you're running into endpoint limitation due to MUSB's poor transfer scheduling for non-bulk endpoints. -- balbi
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