On Mar 6, 2017, at 4:10 AM, Gerd Hoffmann wrote: > On Mi, 2017-03-01 at 23:08 -0500, Programmingkid wrote: >> commit 95ed56939eb2eaa4e2f349fe6dcd13ca4edfd8fb >> usb: ohci: limit the number of link eds >> >> This patch causes Mac OS X to continuously print this message: >> USBF: 35.508 AppleUSBOHCI[0x1187000] Watchdog detected dead controller (hcca >> #: 0, hc#: 863) >> >> I used git bisect to find this patch. None of the USB devices work when >> connected to the OHCI USB controller. > > Hmm, ok, appearently the limit is too strict for macos. Can you try to > increase ED_LINK_LIMIT ?
I used the value of 20 and it worked.