diff options
| author | Jason Andryuk <jandryuk@gmail.com> | 2020-03-16 13:46:09 -0400 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2020-03-17 09:05:33 +0100 |
| commit | 30ad5fdd34d9cfc9f16e73e0229c133d7317a42a (patch) | |
| tree | eed8efab538474e0eda3ff5fc8ad2bdb046b26c4 /hw/usb/dev-serial.c | |
| parent | 87db78f743668224ae9a5346229faed56ef7ff66 (diff) | |
| download | focaccia-qemu-30ad5fdd34d9cfc9f16e73e0229c133d7317a42a.tar.gz focaccia-qemu-30ad5fdd34d9cfc9f16e73e0229c133d7317a42a.zip | |
usb-serial: Increase receive buffer to 496
A FTDI USB adapter on an xHCI controller can send 512 byte USB packets. These are 8 * ( 2 bytes header + 62 bytes data). A 384 byte receive buffer is insufficient to fill a 512 byte packet, so bump the receive size to 496 ( 512 - 2 * 8 ). Signed-off-by: Jason Andryuk <jandryuk@gmail.com> Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Message-id: 20200316174610.115820-4-jandryuk@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'hw/usb/dev-serial.c')
| -rw-r--r-- | hw/usb/dev-serial.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/usb/dev-serial.c b/hw/usb/dev-serial.c index ec091b6a36..77b964588b 100644 --- a/hw/usb/dev-serial.c +++ b/hw/usb/dev-serial.c @@ -29,7 +29,7 @@ do { printf("usb-serial: " fmt , ## __VA_ARGS__); } while (0) #define DPRINTF(fmt, ...) do {} while(0) #endif -#define RECV_BUF 384 +#define RECV_BUF (512 - (2 * 8)) /* Commands */ #define FTDI_RESET 0 |