On Sat, 24 Sep 2016, Lipengcheng wrote: > Hi, > Some special superspeed u3 disk connect xhci control. Then the u3 > disk is read/write and has the Transfer error on endpoint > (COMP_TX_ERR) error. However in the pc windows does not have the > problem.By analysis, the windows is each transfer 64K size. The Linux > is 120K size. In the scsiglue.c, the max_sectors value set the 128 > and each transfer 64K size. Then the Linux system is no problem too. > Why is the max_sectors set the 240? May the max_sectors be the other > values? Most devices work okay with max_sectors set to 240. However, you can change the value if you want. Read the usb-storage.quirks section in Documentation/kernel-parameters.txt; the m flag will set max_sectors to 64. Alan Stern -- 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
