From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: [BUG] mt76x0u: Probing issues on Raspberry Pi 3 B+ From: Felix Fietkau Message-Id: <92273dd0-8944-fb23-c51b-70fc4c5f730e@nbd.name> Date: Tue, 19 Feb 2019 13:11:45 +0100 To: Stanislaw Gruszka , Stefan Wahren Cc: Lorenzo Bianconi , Alan Stern , Doug Anderson , Minas Harutyunyan , USB list , linux-wireless List-ID: T24gMjAxOS0wMi0xOSAxMTo1OSwgU3RhbmlzbGF3IEdydXN6a2Egd3JvdGU6Cj4gT24gTW9uLCBG ZWIgMTgsIDIwMTkgYXQgMTE6MTk6NDBQTSArMDEwMCwgU3RlZmFuIFdhaHJlbiB3cm90ZToKPj4g SGksCj4+IAo+PiA+IFN0YW5pc2xhdyBHcnVzemthIDxzZ3J1c3prYUByZWRoYXQuY29tPiBoYXQg YW0gMTguIEZlYnJ1YXIgMjAxOSB1bSAxNDo1MiBnZXNjaHJpZWJlbjoKPj4gPiAKPj4gPiAKPj4g PiBPbiBTYXQsIEZlYiAxNiwgMjAxOSBhdCAwODoxNzowN1BNICswMTAwLCBTdGVmYW4gV2FocmVu IHdyb3RlOgo+PiA+ID4gdGhpcyBpcyBhIG1pc3VuZGVyc3RhbmRpbmcuIFRoZSB3YXJuaW5nIGlz IGFib3V0IG1lbW9yeSBhbGlnbm1lbnQgdG8gMzIgYml0IGFkZHJlc3Nlcywgbm90IGFib3V0IHBh Z2UgYWxpZ25tZW50LiBUaGlzIGlzIGEgdHlwaWNhbCBBUk0gcmVzdHJpY3Rpb24uIE1heWJlIHdl IG5lZWQgdG8gbWFrZSBzdXJlIGluIG10NzYgdGhhdCB0aGUgRE1BIGJ1ZmZlciBuZWVkcyB0byBi ZSBhbGlnbmVkLiBCdXQgaXQncyBhbHNvIHBvc3NpYmxlIHRoYXQgdGhlIHdhcm5pbmcgaXNuJ3Qg dGhlIHJvb3QgY2F1c2Ugb2Ygb3VyIHByb2JsZW0uCj4+ID4gPiAKPj4gPiAKPj4gPiBJIHNlZSwg aXQgbmVlZHMgNCBieXRlcyBhbGlnbm1lbnQgLiBUaGVyZSBpcyBhbHJlYWR5IGR3YzIgY29kZSBj aGVja3MKPj4gPiB0aGF0IGFuZCBhbGxvY2F0ZSBuZXcgYnVmZmVyIGlmIHRoZSBhbGlnbm1lbnQg aXMgbm90IHJpZ2h0Ogo+PiA+IGR3YzJfYWxsb2NfZG1hX2FsaWduZWRfYnVmZmVyKCksIGJ1dCBp dCBkb2VzIG5vdGhpbmcgaWYgdXJiLT5zZwo+PiA+IGlzIG5vdCBOVUxMLiBJIHRob3VnaHQgbXQ3 NnVzYiBhbHJlYWR5IHByb3ZpZGUgYWxpZ25lZCBidWZmZXJzLCBidXQKPj4gPiBsb29rcyBpdCBk b2VzIG5vdCBmb3Igb25lIFRYIHNwZWNpYWwgY2FzZSwgd2hpY2ggYXJlIFBST0JFIFJFUVVFU1QK Pj4gPiBmcmFtZXMuIE90aGVyIGZyYW1lcyBhcmUgYWxpZ25lZCBieSBpbnNlcnRpbmcgTDIgaGVh ZGVyIHBhZC4gT25lCj4+ID4gc29sdXRpb24gZm9yIHRoaXMgd291bGQgYmUganVzdCBzdWJtaXQg dXJiIHdpdGggIE5VTEwgc2cgKHNhbWUgYXMKPj4gPiBMb3JlbnpvJ3MgcGF0Y2hlcyBkbywgYnV0 IHN0aWxsIGFsbG9jYXRpbmcgYnVmZmVycyB2aWEgYnVmLT5zZyksCj4+ID4gYnV0IEkgdGhpbmss IHlvdSBoYXZlIHJpZ2h0LCB3ZSBzaG91bGQgcHJvdmlkZSA0IGJ5dGVzIGFsaWduZWQgYnVmZmVy cwo+PiA+IGJ5IGRlZmF1bHQgYXMgb3RoZXIgRE1BIGhhcmR3YXJlIG1heSByZXF1aXJlIHRoYXQu IEknbSBhdHRhY2hpbmcgeWV0Cj4+ID4gYW5vdGhlciBwYXRjaCB0byB0ZXN0LCB3aGljaCBmaXgg dXAgYWxpZ25tZW50IGZvciBQUk9CRSBSRVFVRVNUIGZyYW1lcy4KPj4gPiAKPj4gPiA+ID4gQXR0 YWNoZWQgcGF0Y2ggc2hvdWxkIGZpeCB0aGlzLCBwbGVzZSB0ZXN0LCB0aGFua3MgaW4gYWR2YW5j ZS4KPj4gCj4+IGkgc2F3IEZlbGl4IGRlY2lkZWQgdG8gdXNlIExvcmVuem8ncyBhcHByb2FjaC4K Pj4gCj4+IFRoZSBwYXRjaGVzIDEsMyw1IGFwcGxpZWQgb24gdG9kYXkncyBuZXh0IGZpeGVkIG9u bHkgdGhlIHdhcm5pbmcgYW5kIHdpZmkgaXMgc3RpbGwgYnJva2VuIChhdXRoZW50aWNhdGlvbiB0 aW1lb3V0KS4KPj4gCj4+IEhlcmUgYXJlIHRoZSBsb2dzIGZvciBtdWx0aV92N19kZWZjb25maWc6 Cj4+IGh0dHBzOi8vZ2lzdC5naXRodWIuY29tL2xhdGVnb29kYnllLzBhN2M1Y2VhN2RiZjI1ZDBk ZTc5NDRjMDVkMjI5ZDc5Cj4gCj4gSXQgd291bGQgYmUgaW50ZXJlc3Rpbmcgd2h5IHVyYi0+bnVt X3NncyA9IDAgJiB1cmItPnNnIGNhdXNlCj4gdGhlIHRyb3VibGVzLiBUaGlzIGlzIGhvdyB1c2Jf c2dfaW5pdCgpIHN1Ym1pdCB1cmJzIGZvciBzZ190YWJsZXNpemUgPSAwCj4gY29udHJvbGxlcnMu IFNvIGVpdGhlciBhcmUgdGhlcmUgYXJlIHNvbWUgcmVxdWlyZW1lbnQgb24gdXJiLT5zZwo+IG1h cHBlZCB2aWEgZG1hX21hcF9wYWdlKCkgKHdoaWNoIG10NzZ1c2IgZG9lcyBub3QgbWVldCkgbm90 IG5lZWRlZAo+IGZvciB1cmItPnRyYW5zZmVyX2J1ZmZlciBtYXBwZWQgdmlhIGRtYV9tYXBfc2lu Z2xlKCkgb3IgdGhlcmUKPiBpcyBzb21ldGhpbmcgd3JvbmcgaW4gZHdjMiB3aXRoIHNnIGFuZCB0 aGlzIGRyaXZlciB3aWxsIG5vdAo+IHdvcmsgd2l0aCB1cmJfc2dfaW5pdCgpIGFzIHdlbGwuIEkg ZG9uJ3QgaGF2ZSBoYXJkd2FyZSB0byBpbnZlc3RpZ2F0ZQo+IHRoaXMgYW5kIGRvbid0IHdhbnQg dG8gYm90aGVyIHlvdSB3aXRoIG1vcmUgcGF0Y2hlcy4KSSB0aGluayB0aGUgY29uZGl0aW9ucyBm b3Igc2tpcHBpbmcgdGhlIGFsbG9jIG9mIHRoZSBETUEgYWxpZ25lZCBidWZmZXIKaW4gZHdjMiBh cmUgYSBiaXQgcXVpcmt5OgoKICAgIGlmICh1cmItPm51bV9zZ3MgfHwgdXJiLT5zZyB8fAogICAg ICAgIHVyYi0+dHJhbnNmZXJfYnVmZmVyX2xlbmd0aCA9PSAwIHx8CiAgICAgICAgISgodWludHB0 cl90KXVyYi0+dHJhbnNmZXJfYnVmZmVyICYgKERXQzJfVVNCX0RNQV9BTElHTiAtIDEpKSkKICAg ICAgICByZXR1cm4gMDsKCkl0IHdvdWxkIHByb2JhYmx5IG1ha2UgbW9yZSBzZW5zZSB0byB3cml0 ZToKCiAgICBpZiAoKHVyYi0+bnVtX3NncyAmJiB1cmItPnNnICYmCiAgICAgICAgIHVyYi0+dHJh bnNmZXJfYnVmZmVyX2xlbmd0aCA9PSAwKSB8fAogICAgICAgICEoKHVpbnRwdHJfdCl1cmItPnRy YW5zZmVyX2J1ZmZlciAmIChEV0MyX1VTQl9ETUFfQUxJR04gLSAxKSkpCiAgICAgICAgcmV0dXJu IDA7CgpJdCB3b3VsZCBzdGlsbCBuZWVkIHNvbWUgZXh0cmEgY29kZSBmb3IgdGhlIHVyYi0+bnVt X3Nncz09MSBjYXNlIHRob3VnaC4KClRoYXQgY29kZSB3YXMgb3JpZ2luYWxseSB3cml0dGVuIGZv ciB0aGUgbnZpZGlhIHRlZ3JhIGhvc3QgY29udHJvbGxlcgpkcml2ZXIgYW5kIGNvcGllZCB0byBk d2MyLiBNYXliZSBhdCB0aGUgdGltZSB0aGV5IGp1c3QgZGlkbid0IHdhbnQgdG8Kd3JpdGUgZXh0 cmEgY29kZSBkZWFsaW5nIHdpdGggdXJiLT5zZyBiZWNhdXNlIG5vYm9keSB3YXMgdXNpbmcgaXQg Zm9yCnNpbmdsZS1idWZmZXIgdHJhbnNmZXJzLCBvciB0aGV5IGRpZG4ndCBoYXZlIGEgdGVzdCBj YXNlLgoKRWl0aGVyIHdheSwgd2hpbGUgaXQgbWlnaHQgYmUgYSBnb29kIGlkZWEgdG8gaW1wcm92 ZSBkd2MyIGFuZCB0ZWdyYSwgSQpzdGlsbCB0aGluayBhdm9pZGluZyB0aGUgdXNlIG9mIHVyYi0+ c2cgaW4gc2luZ2xlIGJ1ZmZlciBjYXNlcyBpcyBhIGdvb2QKaWRlYS4gT25lIGFkdmFudGFnZSBp cyB0aGF0IGxlc3MgbWVtb3J5IG5lZWRzIHRvIGJlIGFsbG9jYXRlZC4KCi0gRmVsaXgK