Am Dienstag, den 13.04.2021, 00:29 +0530 schrieb Pratham Pratap: > Hi, > > The current implementation of usb_port_resume > (usb_reset_and_verify_device()) can take up-to 60 secs in worst-case > scenario if the device (let's say the device went bad and is > unresponsive to any setup packets) connected went into runtime suspend > and resumed back. Is it fine to have a configurable upper bound? Since > it can induce delay in the overall system resume if the host is waking > up from PM suspend. Well, in that case you have bad hardware. Generally if hardware does not behave like it should we ought to come up eventually, but a delay is acceptable. If however the device really takes almost the full timeout it is technically withing spec. We could say that we can configure that a device should get less retries in that specific case, but a pure time limit looks like not so good an idea to me. Regards Oliver
