The branch main has been updated by corvink: URL: https://cgit.FreeBSD.org/src/commit/?id=73c3e8b1dee6cd42de32287ea8a57762b961d8ee
commit 73c3e8b1dee6cd42de32287ea8a57762b961d8ee Author: Steffen Dirkwinkel <[email protected]> AuthorDate: 2023-01-17 07:58:46 +0000 Commit: Corvin Köhne <[email protected]> CommitDate: 2023-01-18 11:17:09 +0000 umodem: add quirk to ignore CDC_CM descriptor Some devices have CDC_CM descriptors that would point us to the wrong interfaces. Add a quirk to ignore those (prefering the CDC_UNION descriptor effectively) Reviewed by: manu MFC after: 1 week Sponsored by: Beckhoff Automation GmbH & Co. KG Differential Revision: https://reviews.freebsd.org/D37942 --- share/man/man4/usb_quirk.4 | 2 ++ sys/dev/usb/quirk/usb_quirk.c | 1 + sys/dev/usb/quirk/usb_quirk.h | 1 + sys/dev/usb/serial/umodem.c | 4 +++- 4 files changed, 7 insertions(+), 1 deletion(-) diff --git a/share/man/man4/usb_quirk.4 b/share/man/man4/usb_quirk.4 index c176993bdbc3..892c85aa6fba 100644 --- a/share/man/man4/usb_quirk.4 +++ b/share/man/man4/usb_quirk.4 @@ -100,6 +100,8 @@ select configuration index 4 by default select configuration index 0 by default .It UQ_ASSUME_CM_OVER_DATA assume cm over data feature +.It UQ_IGNORE_CDC_CM +ignore cm descriptor .It UQ_WMT_IGNORE device should be ignored by wmt driver .El diff --git a/sys/dev/usb/quirk/usb_quirk.c b/sys/dev/usb/quirk/usb_quirk.c index 68e4910202b0..3baa3acba187 100644 --- a/sys/dev/usb/quirk/usb_quirk.c +++ b/sys/dev/usb/quirk/usb_quirk.c @@ -662,6 +662,7 @@ static const char *usb_quirk_str[USB_QUIRK_MAX] = { [UQ_CFG_INDEX_4] = "UQ_CFG_INDEX_4", [UQ_CFG_INDEX_0] = "UQ_CFG_INDEX_0", [UQ_ASSUME_CM_OVER_DATA] = "UQ_ASSUME_CM_OVER_DATA", + [UQ_IGNORE_CDC_CM] = "UQ_IGNORE_CDC_CM", [UQ_MSC_NO_TEST_UNIT_READY] = "UQ_MSC_NO_TEST_UNIT_READY", [UQ_MSC_NO_RS_CLEAR_UA] = "UQ_MSC_NO_RS_CLEAR_UA", [UQ_MSC_NO_START_STOP] = "UQ_MSC_NO_START_STOP", diff --git a/sys/dev/usb/quirk/usb_quirk.h b/sys/dev/usb/quirk/usb_quirk.h index 85bec036f84d..755465576684 100644 --- a/sys/dev/usb/quirk/usb_quirk.h +++ b/sys/dev/usb/quirk/usb_quirk.h @@ -66,6 +66,7 @@ enum { UQ_CFG_INDEX_4, /* select configuration index 4 by default */ UQ_CFG_INDEX_0, /* select configuration index 0 by default */ UQ_ASSUME_CM_OVER_DATA, /* assume cm over data feature */ + UQ_IGNORE_CDC_CM, /* ignore cm descriptor */ /* * USB Mass Storage Quirks. See "storage/umass.c" for a diff --git a/sys/dev/usb/serial/umodem.c b/sys/dev/usb/serial/umodem.c index e9de2950fb9d..d059559bd39f 100644 --- a/sys/dev/usb/serial/umodem.c +++ b/sys/dev/usb/serial/umodem.c @@ -359,7 +359,9 @@ umodem_attach(device_t dev) /* get the data interface number */ - cmd = umodem_get_desc(uaa, UDESC_CS_INTERFACE, UDESCSUB_CDC_CM); + cmd = NULL; + if (!usb_test_quirk(uaa, UQ_IGNORE_CDC_CM)) + cmd = umodem_get_desc(uaa, UDESC_CS_INTERFACE, UDESCSUB_CDC_CM); if ((cmd == NULL) || (cmd->bLength < sizeof(*cmd))) { cud = usbd_find_descriptor(uaa->device, NULL,
