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From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Lars Melin <larsm17@gmail.com>
Cc: johan@kernel.org, bjorn@mork.no, netdev@vger.kernel.org,
	linux-usb@vger.kernel.org, Matthew Garrett <mgarrett@aurora.tech>
Subject: Re: [PATCH 1/3] USB: serial: option: Add generic MDM9207 configurations
Date: Mon, 26 Dec 2022 02:08:23 +0000	[thread overview]
Message-ID: <20221226020823.GA10889@srcf.ucam.org> (raw)
In-Reply-To: <10cff30a-719d-f6b0-419c-36c552f4bc4b@gmail.com>

On Mon, Dec 26, 2022 at 08:23:34AM +0700, Lars Melin wrote:
> On 12/26/2022 03:52, Matthew Garrett wrote:
> > +	/* Qualcomm MDM9207 - 0: DIAG, 2: AT, 3: NMEA */
> > +	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0xf601),
> > +	  .driver_info = RSVD(1) | RSVD(4) | RSVD(5) },
> > +	/* Qualcomm MDM9207 - 2: DIAG, 4: AT, 5: NMEA */
> > +	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0xf622),
> > +	  .driver_info = RSVD(0) | RSVD(1) | RSVD(3) | RSVD(6) },
> 
> Please tell what the reserved interfaces are used for and why they should be
> blacklisted.

Based on the shipped Windows Qualcomm drivers I have here, for F601 
interface 1 is bound by the qcmdm driver, interface 5 is bound by a QMI 
rmnet, and interfaces 0, 2 and 3 are bound by qcser. That leaves 
interface 4 for adb. For F622, 0 and 1 are RNDIS, 3 is the qcmdm 
interface, 2, 4 and 5 are serial, and 6 is adb. I'm not sure what qcmdm 
does. What format would you like this info in?

> The generic Qualcomm driver for 05c6:f601 (which is used by at least one
> other brand/reseller) specifies that interface#1 is for USB Modem (ppp
> dial-up).

Do you have a pointer to that driver? That seems consistent with the 
Windows drivers, but I have no experience with that.

> I assume that you posses this dongle since you add support for it so you can
> easily verify that function which I assume has not been disabled in your
> version.

Yup, I can check that once I know what it's supposed to be speaking :)

  reply	other threads:[~2022-12-26  2:08 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-25 20:52 Add some USB hotspot IDs Matthew Garrett
2022-12-25 20:52 ` [PATCH 1/3] USB: serial: option: Add generic MDM9207 configurations Matthew Garrett
2022-12-26  1:23   ` Lars Melin
2022-12-26  2:08     ` Matthew Garrett [this message]
2022-12-26  2:43       ` Matthew Garrett
2022-12-26  5:38         ` Lars Melin
2022-12-25 20:52 ` [PATCH 2/3] net: usb: qmi_wwan: Add generic MDM9207 configuration Matthew Garrett
2022-12-25 20:52 ` [PATCH 3/3] USB: serial: option: Add Novatel MiFi 8800L diag endpoint Matthew Garrett

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