Hi all: from below out put slot context it shows ep0 consumer cycle bit is 1 [192016.490849] xhci_hcd 0000:01:00.0: Slot ID 1 Output Context: [192016.490852] xhci_hcd 0000:01:00.0: Slot Context: [192016.490856] xhci_hcd 0000:01:00.0: @f4ba7000 (virt) @34ba7000 (dma) 0x08300000 - dev_info [192016.490860] xhci_hcd 0000:01:00.0: @f4ba7004 (virt) @34ba7004 (dma) 0x00030000 - dev_info2 [192016.490864] xhci_hcd 0000:01:00.0: @f4ba7008 (virt) @34ba7008 (dma) 0x00000000 - tt_info [192016.490869] xhci_hcd 0000:01:00.0: @f4ba700c (virt) @34ba700c (dma) 0x10000001 - dev_state [192016.490873] xhci_hcd 0000:01:00.0: @f4ba7010 (virt) @34ba7010 (dma) 0x00000000 - rsvd[0] [192016.490877] xhci_hcd 0000:01:00.0: @f4ba7014 (virt) @34ba7014 (dma) 0x00000000 - rsvd[1] [192016.490882] xhci_hcd 0000:01:00.0: @f4ba7018 (virt) @34ba7018 (dma) 0x00000000 - rsvd[2] [192016.490886] xhci_hcd 0000:01:00.0: @f4ba701c (virt) @34ba701c (dma) 0x00000000 - rsvd[3] [192016.490890] xhci_hcd 0000:01:00.0: Endpoint 00 Context: [192016.490894] xhci_hcd 0000:01:00.0: @f4ba7020 (virt) @34ba7020 (dma) 0x00000001 - ep_info [192016.490898] xhci_hcd 0000:01:00.0: @f4ba7024 (virt) @34ba7024 (dma) 0x00400026 - ep_info2 [192016.490902] xhci_hcd 0000:01:00.0: @f4ba7028 (virt) @34ba7028 (dma) 0x0f01c801 - deq [192016.490906] xhci_hcd 0000:01:00.0: @f4ba7030 (virt) @34ba7030 (dma) 0x00000000 - tx_info [192016.490911] xhci_hcd 0000:01:00.0: @f4ba7034 (virt) @34ba7034 (dma) 0x00000000 - rsvd[0] [192016.490915] xhci_hcd 0000:01:00.0: @f4ba7038 (virt) @34ba7038 (dma) 0x00000000 - rsvd[1] [192016.490919] xhci_hcd 0000:01:00.0: @f4ba703c (virt) @34ba703c (dma) 0x00000000 - rsvd[2] but why when we enqueue control transfer we purposely leave setup status cycle bit as 0. (below I purpose dump control trb content and 0xcf01c80c should be 0x00000841 instead of 0x00000840, right?) [192016.504076] address trb: cf01c800: 01000680 00080000 00000008 00000840 [192016.505593] address trb: cf01c810: 30e1fdc0 00000000 00000008 00010c05 [192016.507129] address trb: cf01c820: 00000000 00000000 00000000 00001021 -- Regards, -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
