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| author | Kevin O'Connor <kevin@koconnor.net> | 2019-09-16 19:33:06 -0400 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2019-09-16 19:33:06 -0400 |
| commit | 4f889ecd9309c5ba619ba95c7c9f0f170f45628f (patch) | |
| tree | bf75b360da5e3dcbfb0f04b181bd9785606f4c0d /src/stm32/usbfs.c | |
| parent | 045c938a617c2e174a036d5e0929c6dbe7784061 (diff) | |
| download | kutter-4f889ecd9309c5ba619ba95c7c9f0f170f45628f.tar.gz kutter-4f889ecd9309c5ba619ba95c7c9f0f170f45628f.tar.xz kutter-4f889ecd9309c5ba619ba95c7c9f0f170f45628f.zip | |
stm32: Fix usbfs rx buffer sizing
The usbfs receive buffers must also have space for the 2 byte crc at
the end of a transmission. This fixes an error that could lead to
lost messages from mcu to host (resulting in bytes_invalid increasing
in stats) on the stm32f103.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Diffstat (limited to 'src/stm32/usbfs.c')
| -rw-r--r-- | src/stm32/usbfs.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/stm32/usbfs.c b/src/stm32/usbfs.c index 2e0db507..de80b9ae 100644 --- a/src/stm32/usbfs.c +++ b/src/stm32/usbfs.c @@ -29,9 +29,9 @@ struct ep_desc { struct ep_mem { struct ep_desc ep0, ep_acm, ep_bulk_out, ep_bulk_in; uint32_t ep0_tx[USB_CDC_EP0_SIZE / 2]; - uint32_t ep0_rx[USB_CDC_EP0_SIZE / 2]; + uint32_t ep0_rx[USB_CDC_EP0_SIZE / 2 + 1]; uint32_t ep_acm_tx[USB_CDC_EP_ACM_SIZE / 2]; - uint32_t ep_bulk_out_rx[USB_CDC_EP_BULK_OUT_SIZE / 2]; + uint32_t ep_bulk_out_rx[USB_CDC_EP_BULK_OUT_SIZE / 2 + 1]; uint32_t ep_bulk_in_tx[USB_CDC_EP_BULK_IN_SIZE / 2]; }; |