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mirror_qemu/hw/usb
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Jason Andryuk 647ee98772 usb-serial: Fix timeout closing the device 
Linux guests wait ~30 seconds when closing the emulated /dev/ttyUSB0.
During that time, the kernel driver is sending many control URBs
requesting GetModemStat (5).  Real hardware returns a status with
FTDI_THRE (Transmitter Holding Register) and FTDI_TEMT (Transmitter
Empty) set.  QEMU leaves them clear, and it seems Linux is waiting for
FTDI_TEMT to be set to indicate the tx queue is empty before closing.

Set the bits when responding to a GetModemStat query and avoid the
shutdown delay.

Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Message-id: 20200316174610.115820-5-jandryuk@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
 		2020-03-17 09:05:34 +01:00
..
Kconfig hw/usb: Remove the USB bluetooth dongle device 2019-12-16 17:24:07 +01:00
Makefile.objs hw/*/Makefile.objs: Move many .o files to common-objs 2020-02-04 09:00:57 +01:00
bus.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
ccid-card-emulated.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
ccid-card-passthru.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
ccid.h Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
chipidea.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
combined-packet.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
core.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
desc-msos.c usb: use local path for local headers 2018-06-01 19:20:38 +03:00
desc.c usb: use local path for local headers 2018-06-01 19:20:38 +03:00
desc.h all: Clean up includes 2016-02-23 12:43:05 +00:00
dev-audio.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
dev-hid.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
dev-hub.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
dev-mtp.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
dev-network.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
dev-serial.c usb-serial: Fix timeout closing the device 2020-03-17 09:05:34 +01:00
dev-smartcard-reader.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
dev-storage.c usb/dev-storage: remove unused include 2020-03-09 18:05:19 +00:00
dev-uas.c uas: fix super speed bMaxPacketSize0 2020-02-12 17:20:41 +01:00
dev-wacom.c Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
hcd-ehci-pci.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
hcd-ehci-sysbus.c hw/arm/allwinner-h3: add USB host controller 2020-03-12 16:27:33 +00:00
hcd-ehci.c usb/hcd-ehci: Remove redundant statements 2020-03-09 11:12:55 +01:00
hcd-ehci.h hw/arm/allwinner-h3: add USB host controller 2020-03-12 16:27:33 +00:00
hcd-musb.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
hcd-ohci-pci.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
hcd-ohci.c hw: usb: hcd-ohci: Move OHCISysBusState and TYPE_SYSBUS_OHCI to include file 2020-02-21 16:07:02 +00:00
hcd-ohci.h hw: usb: hcd-ohci: Move OHCISysBusState and TYPE_SYSBUS_OHCI to include file 2020-02-21 16:07:02 +00:00
hcd-uhci.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
hcd-xhci-nec.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
hcd-xhci.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
hcd-xhci.h Supply missing header guards 2019-06-12 13:20:21 +02:00
host-libusb.c usb-host: wait for cancel complete 2020-02-12 17:20:31 +01:00
host-stub.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
host.h usb-host: move legacy cmd line bits 2013-02-19 12:30:05 +01:00
libhw.c Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
quirks-ftdi-ids.h usbredir: Add support for buffered bulk input (v2) 2013-01-08 10:56:58 +01:00
quirks-pl2303-ids.h usbredir: Add support for buffered bulk input (v2) 2013-01-08 10:56:58 +01:00
quirks.c usb: Clean up includes 2016-01-29 15:07:23 +00:00
quirks.h Supply missing header guards 2019-06-12 13:20:21 +02:00
redirect.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
trace-events usb-host: remove 'remote wakeup' flag from configuration descriptor 2020-01-13 09:17:31 +01:00
tusb6010.c Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
xen-usb.c Include qemu/main-loop.h less 2019-08-16 13:31:52 +02:00