From nobody Tue Oct 4 08:39:35 2022 X-Original-To: hardware@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4MhWNF1qjhz4V6k6; Tue, 4 Oct 2022 08:39:41 +0000 (UTC) (envelope-from hps@selasky.org) Received: from mail.turbocat.net (turbocat.net [88.99.82.50]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4MhWNC4wVDz3DYY; Tue, 4 Oct 2022 08:39:39 +0000 (UTC) (envelope-from hps@selasky.org) Received: from [10.36.2.155] (unknown [178.232.223.95]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mail.turbocat.net (Postfix) with ESMTPSA id 14C3E260222; Tue, 4 Oct 2022 10:39:38 +0200 (CEST) Message-ID: Date: Tue, 4 Oct 2022 10:39:35 +0200 List-Id: General discussion of FreeBSD hardware List-Archive: https://lists.freebsd.org/archives/freebsd-hardware List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hardware@freebsd.org MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:102.0) Gecko/20100101 Thunderbird/102.3.0 Subject: Re: Accessing I2C-Bus via ELV USB-I2C To: Axel Rau Cc: hardware@freebsd.org, freebsd-hackers@freebsd.org References: <996df5c0-ffa7-f1bf-a9e2-6dd47d7b49e6@Chaos1.DE> <35D556D7-56EC-4295-93D6-80A4CFE6DCE9@Chaos1.DE> <37c55124-5cd5-6fd1-ca46-9265ebe47b18@selasky.org> <602324D8-515B-4061-8689-5638E9A82759@Chaos1.DE> <2cb6203f-03da-9a05-24a5-c851f1424503@selasky.org> Content-Language: en-US From: Hans Petter Selasky In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4MhWNC4wVDz3DYY X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of hps@selasky.org designates 88.99.82.50 as permitted sender) smtp.mailfrom=hps@selasky.org X-Spamd-Result: default: False [-3.30 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-1.000]; R_SPF_ALLOW(-0.20)[+a:mail.turbocat.net:c]; MIME_GOOD(-0.10)[text/plain]; MLMMJ_DEST(0.00)[freebsd-hackers@freebsd.org,hardware@freebsd.org]; R_DKIM_NA(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:24940, ipnet:88.99.0.0/16, country:DE]; TO_MATCH_ENVRCPT_SOME(0.00)[]; ARC_NA(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; TO_DN_SOME(0.00)[]; FROM_HAS_DN(0.00)[]; DMARC_NA(0.00)[selasky.org]; RCPT_COUNT_THREE(0.00)[3]; RCVD_TLS_ALL(0.00)[] X-ThisMailContainsUnwantedMimeParts: N On 10/4/22 01:35, Axel Rau wrote: > > >> Am 03.10.2022 um 17:57 schrieb Hans Petter Selasky : >> >> Can you show the full sequence from the SUBM-CTRL-EP ? > - - - > 15:46:38.538480 usbus1.3 SUBM-CTRL-EP=00000000,SPD=FULL,NFR=1,SLEN=8,IVAL=0 > frame[0] WRITE 8 bytes > 0000 41 07 01 01 00 00 00 00 -- -- -- -- -- -- -- -- |A....... | > flags 0 <0> > status 0xca1a3 > 15:46:38.539679 usbus1.3 DONE-CTRL-EP=00000000,SPD=FULL,NFR=1,SLEN=0,IVAL=0,ERR=0 > frame[0] WRITE 8 bytes > flags 0 <0> > status 0xca1a1 > 15:46:38.539719 usbus1.3 SUBM-CTRL-EP=00000000,SPD=FULL,NFR=1,SLEN=8,IVAL=0 > frame[0] WRITE 8 bytes > 0000 41 07 02 02 00 00 00 00 -- -- -- -- -- -- -- -- |A....... | > flags 0 <0> > status 0xea1a3 > 15:46:38.540291 usbus1.3 DONE-CTRL-EP=00000000,SPD=FULL,NFR=1,SLEN=0,IVAL=0,ERR=0 > frame[0] WRITE 8 bytes > flags 0 <0> > status 0xea1a1 > - - - That looks normal. The DONE transaction transferred the SETUP packet, but still lists frame [0], but is not dumping the data, because it has already been sent. frame [0] is always the SETUP packet for control endpoints. --HPS