On Wednesday, June 18, 2014 12:13:15 pm Edward Tomasz Napierała wrote: > On 0618T0947, John Baldwin wrote: > > On Monday, June 16, 2014 3:21:55 pm Edward Tomasz Napierała wrote: > > > Hi. Patch below should fix a problem where USB stops working after > > > _second_ suspend/resume, which happens on various ThinkPad models. > > > Please test, and report both success stories and failures. If nothing > > > comes up, I'll commit it in a week or so. > > > > Good find. Have you thought about a more generic fix for this wherein you > > track power resources and flip them on during resume in ACPI before doing > > DEVICE_RESUME() on the root bus? > > Thing is, after resume this device claims to be on already. The following > simple hack was enough to make it work:
Ahh, I think I see. Try this instead: Index: sys/dev/acpica/acpi_powerres.c =================================================================== --- acpi_powerres.c (revision 267550) +++ acpi_powerres.c (working copy) @@ -645,7 +645,7 @@ acpi_pwr_switch_power(void) acpi_name(rp->ap_resource), status)); /* XXX is this correct? Always switch if in doubt? */ continue; - } else if (rp->ap_state == ACPI_PWR_UNK) + } else rp->ap_state = cur; /* @@ -689,7 +689,7 @@ acpi_pwr_switch_power(void) acpi_name(rp->ap_resource), status)); /* XXX is this correct? Always switch if in doubt? */ continue; - } else if (rp->ap_state == ACPI_PWR_UNK) + } else rp->ap_state = cur; /* (We were ignoring what _STA told us and believed it was ON because we had cached that state previously.) -- John Baldwin _______________________________________________ firstname.lastname@example.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"