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[Qemu-devel] [PATCH v2 5/8] usb-ccid: Fix USB descriptor
From: |
Stefan Fritsch |
Subject: |
[Qemu-devel] [PATCH v2 5/8] usb-ccid: Fix USB descriptor |
Date: |
Thu, 20 Jul 2017 11:02:48 +0200 |
From: Stefan Fritsch <address@hidden>
- We want to support both T=0 and T=1. Additionally, note that all
fields in USB descriptors are little endian and the supported
protocols are in the lowest byte the of the 32-Bit dwProtocols field.
- We want APDU level exchanges. This saves us from PPS exchanges and from
APDU reassembly from T=1 packets.
Signed-off-by: Stefan Fritsch <address@hidden>
Signed-off-by: Christian Ehrhardt <address@hidden>
---
hw/usb/dev-smartcard-reader.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/hw/usb/dev-smartcard-reader.c b/hw/usb/dev-smartcard-reader.c
index 769949144b..bc4dc35d3f 100644
--- a/hw/usb/dev-smartcard-reader.c
+++ b/hw/usb/dev-smartcard-reader.c
@@ -353,8 +353,8 @@ static const uint8_t qemu_ccid_descriptor[] = {
*/
0x07, /* u8 bVoltageSupport; 01h - 5.0v, 02h - 3.0, 03 - 1.8 */
- 0x00, 0x00, /* u32 dwProtocols; RRRR PPPP. RRRR = 0000h.*/
- 0x01, 0x00, /* PPPP: 0001h = Protocol T=0, 0002h = Protocol T=1 */
+ 0x03, 0x00, /* u32 dwProtocols; RRRR PPPP. RRRR = 0000h.*/
+ 0x00, 0x00, /* PPPP: 0001h = Protocol T=0, 0002h = Protocol T=1 */
/* u32 dwDefaultClock; in kHZ (0x0fa0 is 4 MHz) */
0xa0, 0x0f, 0x00, 0x00,
/* u32 dwMaximumClock; */
@@ -397,7 +397,7 @@ static const uint8_t qemu_ccid_descriptor[] = {
* insertion and removal. Must set bit 5 in bmAttributes
* in Configuration descriptor if 100000 is set.
*/
- 0xfe, 0x04, 0x01, 0x00,
+ 0xfe, 0x04, 0x04, 0x00,
/*
* u32 dwMaxCCIDMessageLength; For extended APDU in
* [261 + 10 , 65544 + 10]. Otherwise the minimum is
--
2.11.0