@@ -1483,6 +1483,11 @@ skip_countries:
goto alloc_fail8;
}
+ if (quirks & CLEAR_HALT_CONDITIONS) {
+ usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress));
+ usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress));
+ }
+
return 0;
alloc_fail8:
if (acm->country_codes) {
@@ -1760,6 +1765,10 @@ static const struct usb_device_id acm_ids[] = {
.driver_info = NO_UNION_NORMAL, /* reports zero length descriptor */
},
+ { USB_DEVICE(0x2912, 0x0001), /* ATOL FPrint */
+ .driver_info = CLEAR_HALT_CONDITIONS,
+ },
+
/* Nokia S60 phones expose two ACM channels. The first is
* a modem and is picked up by the standard AT-command
* information below. The second is 'vendor-specific' but
@@ -133,3 +133,4 @@ struct acm {
#define NO_DATA_INTERFACE BIT(4)
#define IGNORE_DEVICE BIT(5)
#define QUIRK_CONTROL_LINE_STATE BIT(6)
+#define CLEAR_HALT_CONDITIONS BIT(7)
This is a note to let you know that I have just added a patch titled cdc-acm: Add support of ATOL FPrint fiscal printers to the linux-3.19.y-queue branch of the 3.19.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.19.y-queue This patch is scheduled to be released in version 3.19.y-ckt4. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.19.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ------ From 7ab6e6ef696e15ec5993fc46b06db8fbed415f5c Mon Sep 17 00:00:00 2001 From: Alexey Sokolov <sokolov@7pikes.com> Date: Tue, 2 Jun 2015 11:49:30 +0300 Subject: cdc-acm: Add support of ATOL FPrint fiscal printers commit 15bf722e6f6c0b884521a0363204532e849deb7f upstream. ATOL FPrint fiscal printers require usb_clear_halt to be executed to work properly. Add quirk to fix the issue. Signed-off-by: Alexey Sokolov <sokolov@7pikes.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- drivers/usb/class/cdc-acm.c | 9 +++++++++ drivers/usb/class/cdc-acm.h | 1 + 2 files changed, 10 insertions(+) -- 1.9.1