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| author | Jiri Slaby <jslaby@suse.cz> | 2019-01-18 07:53:27 +0100 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2019-01-18 07:53:34 +0100 |
| commit | 682a902c485523f788696123ade67c88f4345dc6 (patch) | |
| tree | 7cd14f384e96083df4c8917fb3926afd4153de96 | |
| parent | 252a855263b29b9e485dbb91d54a1abf90be8fbd (diff) | |
usb: cdc-acm: send ZLP for Telit 3G Intel based modems
(bnc#1012628).
| -rw-r--r-- | patches.kernel.org/4.20.3-023-usb-cdc-acm-send-ZLP-for-Telit-3G-Intel-based-.patch | 41 | ||||
| -rw-r--r-- | series.conf | 1 |
2 files changed, 42 insertions, 0 deletions
diff --git a/patches.kernel.org/4.20.3-023-usb-cdc-acm-send-ZLP-for-Telit-3G-Intel-based-.patch b/patches.kernel.org/4.20.3-023-usb-cdc-acm-send-ZLP-for-Telit-3G-Intel-based-.patch new file mode 100644 index 0000000000..43e63364db --- /dev/null +++ b/patches.kernel.org/4.20.3-023-usb-cdc-acm-send-ZLP-for-Telit-3G-Intel-based-.patch @@ -0,0 +1,41 @@ +From: Daniele Palmas <dnlplm@gmail.com> +Date: Fri, 28 Dec 2018 16:15:41 +0100 +Subject: [PATCH] usb: cdc-acm: send ZLP for Telit 3G Intel based modems +References: bnc#1012628 +Patch-mainline: 4.20.3 +Git-commit: 34aabf918717dd14e05051896aaecd3b16b53d95 + +commit 34aabf918717dd14e05051896aaecd3b16b53d95 upstream. + +Telit 3G Intel based modems require zero packet to be sent if +out data size is equal to the endpoint max packet size. + +Signed-off-by: Daniele Palmas <dnlplm@gmail.com> +Cc: stable <stable@vger.kernel.org> +Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> +Signed-off-by: Jiri Slaby <jslaby@suse.cz> +--- + drivers/usb/class/cdc-acm.c | 7 +++++++ + 1 file changed, 7 insertions(+) + +diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c +index ed8c62b2d9d1..739f8960811a 100644 +--- a/drivers/usb/class/cdc-acm.c ++++ b/drivers/usb/class/cdc-acm.c +@@ -1865,6 +1865,13 @@ static const struct usb_device_id acm_ids[] = { + .driver_info = IGNORE_DEVICE, + }, + ++ { USB_DEVICE(0x1bc7, 0x0021), /* Telit 3G ACM only composition */ ++ .driver_info = SEND_ZERO_PACKET, ++ }, ++ { USB_DEVICE(0x1bc7, 0x0023), /* Telit 3G ACM + ECM composition */ ++ .driver_info = SEND_ZERO_PACKET, ++ }, ++ + /* control interfaces without any protocol set */ + { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM, + USB_CDC_PROTO_NONE) }, +-- +2.20.1 + diff --git a/series.conf b/series.conf index 369debfbfc..bbba5d8f74 100644 --- a/series.conf +++ b/series.conf @@ -260,6 +260,7 @@ patches.kernel.org/4.20.3-020-ARM-davinci-omapl138-hawk-fix-label-names-in-G.patch patches.kernel.org/4.20.3-021-ARM-davinci-dm644x-evm-fix-label-names-in-GPIO.patch patches.kernel.org/4.20.3-022-ARM-davinci-da830-evm-fix-label-names-in-GPIO-.patch + patches.kernel.org/4.20.3-023-usb-cdc-acm-send-ZLP-for-Telit-3G-Intel-based-.patch ######################################################## # Build fixes that apply to the vanilla kernel too. |