[Qemu-devel] [PATCH 1/1] dev-serial: report when data are ready to be read

* [Qemu-devel] [PATCH 1/1] dev-serial: report when data are ready to be read
@ 2014-12-18 16:23 Jean-Christophe PLAGNIOL-VILLARD
  0 siblings, 0 replies; only message in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2014-12-18 16:23 UTC (permalink / raw)
  To: qemu-devel; +Cc: Jean-Christophe PLAGNIOL-VILLARD

So we can pull it on software without IRQ support

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 hw/usb/dev-serial.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/usb/dev-serial.c b/hw/usb/dev-serial.c
index 500fbb0..4c14126 100644
--- a/hw/usb/dev-serial.c
+++ b/hw/usb/dev-serial.c
@@ -321,6 +321,8 @@ static void usb_serial_handle_control(USBDevice *dev, USBPacket *p,
     case DeviceInVendor | FTDI_GET_MDM_ST:
         data[0] = usb_get_modem_lines(s) | 1;
         data[1] = 0;
+	if (s->recv_used)
+		data[1] |= FTDI_DR;
         p->actual_length = 2;
         break;
     case DeviceOutVendor | FTDI_SET_EVENT_CHR:
-- 
2.1.3

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