Could be a power issue? The upper-layer driver believes it’s the same disk and uses previous caches When putting a xhci chip to aux-powered sleep with xhci suspend, it continues to detect connection changes on the ports. If you’re not getting disk ejection notices after a reset, it must be doing an internal reenumeration like PXHCD. The drives definitely work after sleep with mxhcd. Hibernate write took ms all time:
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Tested with usb2 and usb3 devices and they seem to work. When putting a xhci chip to aux-powered sleep with xhci suspend, it continues to detect connection changes on the ports.
It looks like the ports re-organized themselves and I am hitting limits again though I cb628 not sure why granted I have 4 USB hubs attached to my computer in addition to the internal ones. I don’t even have a Can the anonymous coward please explain why they downvoted this question; I’d be happy with – and – welcome some constructive feedback rather than a cold downvote.
USB 3.0 ExpressCard Mac Drivers
I’m using the Etron EJ built in to my motherboard. Thanks for the analysis. It does xhci suspend-resume, but at the end of the resume, without checking if the resume failed, it proceeds to reset the chip! Posted March 20, Great for older laptops with an ExpressCard slot. USB ports bc6288 longer working reliably after Run these commands, replacing Your Disk Name with the name of your Mac disk partition.
USB ExpressCard Mac Drivers | MacRumors Forums
Whether ld sets something in the actual binary to indicate OS Bc62 target, I don’t really know but I think not. I get the disconnected drive error message and then the drives remount.
If you’re not getting disk ejection notices after a reset, it must be doing an internal reenumeration like PXHCD. I’m aware that the port has a limitation of 5gb. If you make enough of the code conditional, you can probably get it to manage USB 2.
I know the post is a bit old, but so is my hc628 macBookPro. Less power needy thumb drives are fine and will work at the same time. Your laptop remains compact as this expresscard USB 3. I’ve thought about it, and if it’s the same drive, then doing a silent reenumation may prevent data-corruption – since the upper layer driver doesn’t know the disk disconnected, and doesn’t throw away the caches. Plugging in 2 devices in both ports at the same time can be a problem.
It seems to crash when i unplugged a device once, but hasnt done it again yet. Far better performance than USB2.
USB on 17″ MacBook Pro under El Capitan «
Are you sure the drives work after sleep? PXHCD just assumes it’s the same device Not plug and pray. I am using 7 series chipset.
Posted March 19, Greatly appreciate everyone experience in this matter. Could you block it from resetting the chip after it’s suspend-resume?
USB 3.0 on 17″ MacBook Pro under El Capitan
Could be a bc6628 issue? Or sign in with one of these services Sign in with Facebook. This is across both USB 2. I modified the MXHCD inf the same way, but the binary didn’t need patching as it’s not locked to any specific device.
Also, if i bootup with my sdcard reader plugged. Similarly, if I plug in a usb3 device it will correctly be listed under usb3.