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: [4/6] usb: gadget: add functions to signal udc driver to delay status stage From: Alan Stern Message-Id: Date: Fri, 14 Dec 2018 10:35:58 -0500 (EST) To: Paul Elder Cc: Felipe Balbi , Laurent Pinchart , Bin Liu , kieran.bingham@ideasonboard.com, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, rogerq@ti.com List-ID: T24gVGh1LCAxMyBEZWMgMjAxOCwgUGF1bCBFbGRlciB3cm90ZToKCj4gPiBTdXBwb3NlIHdlIGhh dmUgYSBjb3JlIGxpYnJhcnkgcm91dGluZSBsaWtlIHRoaXM6Cj4gPiAKPiA+IHZvaWQgdXNiX2dh ZGdldF9jb250cm9sX2NvbXBsZXRlKHN0cnVjdCB1c2JfZ2FkZ2V0ICpnYWRnZXQsCj4gPiAJCXVu c2lnbmVkIGludCBub19pbXBsaWNpdF9zdGF0dXMsIGludCBzdGF0dXMpCj4gPiB7Cj4gPiAJc3Ry dWN0IHVzYl9yZXF1ZXN0ICpyZXE7Cj4gPiAKPiA+IAlpZiAobm9faW1wbGljaXRfc3RhdHVzIHx8 IHN0YXR1cyAhPSAwKQo+ID4gCQlyZXR1cm47Cj4gPiAKPiA+IAkvKiBTZW5kIGFuIGltcGxpY2l0 IHN0YXR1cy1zdGFnZSByZXF1ZXN0IGZvciBlcDAgKi8KPiA+IAlyZXEgPSB1c2JfZXBfYWxsb2Nf cmVxdWVzdChnYWRnZXQtPmVwMCwgR0ZQX0FUT01JQyk7Cj4gPiAJaWYgKHJlcSkgewo+ID4gCQly ZXEtPmxlbmd0aCA9IDA7Cj4gPiAJCXJlcS0+bm9faW1wbGljaXRfc3RhdHVzID0gMTsKPiA+IAkJ cmVxLT5jb21wbGV0ZSA9IC8qIHJlcSdzIGRlYWxsb2NhdGlvbiByb3V0aW5lICovCj4gPiAJCXVz Yl9lcF9xdWV1ZShnYWRnZXQtPmVwMCwgcmVxLCBHRlBfQVRPTUlDKTsKPiA+IAl9Cj4gPiB9Cj4g PiAKPiA+IFRoZW4gYWxsIGEgVURDIGRyaXZlciB3b3VsZCBuZWVkIHRvIGRvIGlzIGNhbGwgCj4g PiB1c2JfZ2FkZ2V0X2NvbnRyb2xfY29tcGxldGUoKSBhZnRlciBpbnZva2luZyBhIGNvbnRyb2wg cmVxdWVzdCdzIAo+ID4gY29tcGxldGlvbiBoYW5kbGVyLiAgVGhlIG5vX2ltcGxpY2l0X3N0YXR1 cyBhbmQgc3RhdHVzIGFyZ3VtZW50cyB3b3VsZCAKPiA+IGJlIHRha2VuIGZyb20gdGhlIHJlcXVl c3QgdGhhdCB3YXMganVzdCBjb21wbGV0ZWQuCj4gPiAKPiA+IFdpdGggdGhpcyBvbmUgY2FsbCBh ZGRlZCB0byBlYWNoIFVEQywgYWxsIHRoZSBleGlzdGluZyBmdW5jdGlvbiBkcml2ZXJzCj4gPiB3 b3VsZCB3b3JrIGNvcnJlY3RseS4gIEV2ZW4gdGhvdWdoIHRoZXkgZG9uJ3QgZXhwbGljaXRseSBx dWV1ZQo+ID4gc3RhdHVzLXN0YWdlIHJlcXVlc3RzLCB0aGUgbmV3IHJvdXRpbmUgd2lsbCBkbyBz byBmb3IgdGhlbSwKPiA+IHRyYW5zcGFyZW50bHkuICBGdW5jdGlvbiBkcml2ZXJzIHRoYXQgd2Fu dCB0byBoYW5kbGUgdGhlaXIgb3duCj4gPiBzdGF0dXMtc3RhZ2UgcmVxdWVzdHMgZXhwbGljaXRs eSB3aWxsIG1lcmVseSBoYXZlIHRvIHNldCB0aGUKPiA+IHJlcS0+bm9faW1wbGljaXRfc3RhdHVz IGJpdC4KPiAKPiBJIHRoaW5rIHRoaXMgaXMgYSBnb29kIGlkZWEuIFdlIHN0aWxsIGdldCB0aGUg YmVuZWZpdHMgb2YgZXhwbGljaXQKPiBzdGF0dXMgc3RhZ2Ugd2l0aG91dCBiZWluZyBvdmVybHkg aW50cnVzaXZlIGluIHRoZSBjb252ZXJzaW9uLCBhbmQgd2UKPiBtYWludGFpbiB0aGUgcXVldWUt YmFzZWQgQVBJLgo+IAo+IFdvdWxkIGl0IGJlIGZpbmUgZm9yIG1lIHRvIHByb2NlZWQgaW4gdGhp cyBkaXJlY3Rpb24gZm9yIGEgdjI/CgpJdCBpcyBhcyBmYXIgYXMgSSdtIGNvbmNlcm5lZCAoRmVs aXBlIG1pZ2h0IG5vdCBhZ3JlZSkuICBLbm9jayB5b3Vyc2VsZgpvdXQuICA6LSkKCkFsYW4gU3Rl cm4KCj4gPiAoV2UgbWlnaHQgb3IgbWlnaHQgbm90IG5lZWQgdG8gd2F0Y2ggb3V0IGZvciAwLWxl bmd0aCBjb250cm9sLU9VVCAKPiA+IHRyYW5zZmVycy4gIEZ1bmN0aW9uIGRyaXZlcnMgX2RvXyBx dWV1ZSBzdGF0dXMtc3RhZ2UgcmVxdWVzdHMgZm9yIAo+ID4gdGhvc2UuKQo+IAo+IFRoYW5rcywK PiAKPiBQYXVsIEVsZGVyCg==