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Date:      Mon, 3 Oct 2022 17:50:57 +0200
From:      Axel Rau <Axel.Rau@Chaos1.DE>
To:        Hans Petter Selasky <hps@selasky.org>
Cc:        hardware@freebsd.org, freebsd-hackers@freebsd.org
Subject:   Re: Accessing I2C-Bus via ELV USB-I2C
Message-ID:  <602324D8-515B-4061-8689-5638E9A82759@Chaos1.DE>
In-Reply-To: <37c55124-5cd5-6fd1-ca46-9265ebe47b18@selasky.org>
References:  <996df5c0-ffa7-f1bf-a9e2-6dd47d7b49e6@Chaos1.DE> <35D556D7-56EC-4295-93D6-80A4CFE6DCE9@Chaos1.DE> <37c55124-5cd5-6fd1-ca46-9265ebe47b18@selasky.org>

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> Am 03.10.2022 um 17:38 schrieb Hans Petter Selasky <hps@selasky.org>:
>=20
> On 10/3/22 17:26, Axel Rau wrote:
>> Questions:
>> 1. On usbdump, why is the hexdump mssing on some lines like
>> 	frame[0] WRITE <n> bytes  ?
>=20
> The -s arguments tells to only grab the first 1024 bytes. Maybe it is =
truncated.
>=20
> Try setting -s to 65536
>=20

That does not help:
- - -=20
usbdump -d ugen1.3 -v -v -v -s 65536 > usb.txt
- - -
15:46:38.539679 usbus1.3 DONE-CTRL-EP=3D00000000,SPD=3DFULL,NFR=3D1,SLEN=3D=
0,IVAL=3D0,ERR=3D0
 frame[0] WRITE 8 bytes
 flags 0 <0>
 status 0xca1a1 <OPEN|STARTED|CONTROL_XFR|CONTROL_HDR|BDMA_ENABLE|BDMA_SE=
TUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
- - -

Axel
=2D--
PGP-Key: CDE74120  =E2=98=80  computing @ chaos claudius


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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; -webkit-nbs=
p-mode: space; line-break: after-white-space;" class=3D""><br class=3D"">=
<div><br class=3D""><blockquote type=3D"cite" class=3D""><div class=3D"">=
Am 03.10.2022 um 17:38 schrieb Hans Petter Selasky &lt;<a href=3D"mailto:=
hps@selasky.org" class=3D"">hps@selasky.org</a>&gt;:</div><br class=3D"Ap=
ple-interchange-newline"><div class=3D""><div class=3D"">On 10/3/22 =
17:26, Axel Rau wrote:<br class=3D""><blockquote type=3D"cite" class=3D""=
>Questions:<br class=3D"">1. On usbdump, why is the hexdump mssing on =
some lines like<br class=3D""><span class=3D"Apple-tab-span" style=3D"whi=
te-space:pre">	</span>frame[0] WRITE &lt;n&gt; bytes &nbsp;?<br class=3D"=
"></blockquote><br class=3D"">The -s arguments tells to only grab the =
first 1024 bytes. Maybe it is truncated.<br class=3D""><br class=3D"">Try=
 setting -s to 65536<br class=3D""><br class=3D""></div></div></blockquot=
e><br class=3D""></div><div>That does not help:</div><div>- - -&nbsp;</di=
v><div><div><span style=3D"font-family: Monaco; font-size: 11px; =
background-color: rgb(255, 255, 255);" class=3D"">usbdump -d ugen1.3 -v =
-v -v -s 65536 &gt; usb.txt</span></div><div>- - -</div><div>15:46:38.539=
679 usbus1.3 DONE-CTRL-EP=3D00000000,SPD=3DFULL,NFR=3D1,SLEN=3D0,IVAL=3D0=
,ERR=3D0</div><div>&nbsp;frame[0] WRITE 8 bytes</div><div>&nbsp;flags 0 =
&lt;0&gt;</div><div>&nbsp;status 0xca1a1 &lt;OPEN|STARTED|CONTROL_XFR|CON=
TROL_HDR|BDMA_ENABLE|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0&gt;</di=
v><div class=3D"">- - -</div><div class=3D""><br class=3D""></div></div>A=
xel<br class=3D""><div class=3D"">
<div dir=3D"auto" style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, =
0); letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; -webkit-tex=
t-stroke-width: 0px; text-decoration: none; word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" class=3D""><div=
 dir=3D"auto" style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); =
letter-spacing: normal; text-align: start; text-indent: 0px; text-transfo=
rm: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-wid=
th: 0px; text-decoration: none; word-wrap: break-word; -webkit-nbsp-mode:=
 space; line-break: after-white-space;" class=3D""><div style=3D"color: =
rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: =
0px; text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode:=
 space; line-break: after-white-space;" class=3D""><div style=3D"color: =
rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: =
0px; text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode:=
 space; line-break: after-white-space;" class=3D""><div style=3D"color: =
rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant-li=
gatures: normal; font-variant-position: normal; font-variant-caps: =
normal; font-variant-numeric: normal; font-variant-alternates: normal; =
font-variant-east-asian: normal; font-weight: normal; letter-spacing: =
normal; line-height: normal; orphans: 2; text-align: -webkit-auto; =
text-indent: 0px; text-transform: none; white-space: normal; widows: 2; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word;=
 -webkit-nbsp-mode: space; line-break: after-white-space;" class=3D""><di=
v class=3D"">---<br class=3D"">PGP-Key:&nbsp;CDE74120 &nbsp;=E2=98=80 =
&nbsp;computing @ chaos claudius</div></div></div></div></div></div>
</div>
<br class=3D""></body></html>

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