Messages in this thread Patch in this message | | | From | Luis Henriques <> | Subject | [PATCH 3.16.y-ckt 057/185] cdc-acm: Add support of ATOL FPrint fiscal printers | Date | Wed, 15 Jul 2015 10:10:52 +0100 |
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3.16.7-ckt15 -stable review patch. If anyone has any objections, please let me know.
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From: Alexey Sokolov <sokolov@7pikes.com>
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: Luis Henriques <luis.henriques@canonical.com> --- drivers/usb/class/cdc-acm.c | 9 +++++++++ drivers/usb/class/cdc-acm.h | 1 + 2 files changed, 10 insertions(+)
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index a8946e88978e..54c79f7fdaf5 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1480,6 +1480,11 @@ 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) { @@ -1759,6 +1764,10 @@ 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 diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h index d3251ebd09e2..9cca2e7280bb 100644 --- a/drivers/usb/class/cdc-acm.h +++ b/drivers/usb/class/cdc-acm.h @@ -134,3 +134,4 @@ 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)
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