diff options
author | Didier Raboud <odyx@debian.org> | 2021-06-04 10:49:47 +0200 |
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committer | Didier Raboud <odyx@debian.org> | 2021-06-04 10:49:47 +0200 |
commit | 455c81cf14f157b0e7e5379834099a597e0bbf67 (patch) | |
tree | 95829a04c8d7f0d602e3e3c83f9223fa086e1d4a | |
parent | 8c028f6290ecbf7ec2ee0a0d94e548ff57240524 (diff) | |
parent | f6a71b481c7b093762080d6d6fe2d73948c9c1d5 (diff) |
Update to upstream 0.9.19
[git-debrebase anchor: new upstream 0.9.19, merge]
-rw-r--r-- | usbtransport.go | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/usbtransport.go b/usbtransport.go index 8402c7d..4c98660 100644 --- a/usbtransport.go +++ b/usbtransport.go @@ -619,15 +619,17 @@ func (conn *usbConn) Read(b []byte) (int, error) { // Note, to avoid LIBUSB_TRANSFER_OVERFLOW errors // from libusb, input buffer size must always - // be aligned by 512 bytes + // be aligned by 1024 bytes for USB 3.0, 512 bytes + // for USB 2.0, so 1024 bytes alignment is safe for + // both // - // However if caller requests less that 512 bytes, we + // However if caller requests less that 1024 bytes, we // can't align here simply by shrinking the buffer, // because it will result a zero-size buffer. At - // this case we assume caller knows what it + // this case we assume caller knows what it is // doing (actually bufio never behaves this way) - if n := len(b); n >= 512 { - n &= ^511 + if n := len(b); n >= 1024 { + n &= ^1023 b = b[0:n] } |