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Diffstat (limited to 'usrp/host/lib/legacy/fusb_sysconfig_linux.cc')
-rw-r--r--usrp/host/lib/legacy/fusb_sysconfig_linux.cc10
1 files changed, 8 insertions, 2 deletions
diff --git a/usrp/host/lib/legacy/fusb_sysconfig_linux.cc b/usrp/host/lib/legacy/fusb_sysconfig_linux.cc
index 468fa9f82..e5dc1f457 100644
--- a/usrp/host/lib/legacy/fusb_sysconfig_linux.cc
+++ b/usrp/host/lib/legacy/fusb_sysconfig_linux.cc
@@ -23,8 +23,9 @@
#include <fusb.h>
#include <fusb_linux.h>
-static const int MAX_BLOCK_SIZE = 16 * 1024; // hard limit
-static const int FUSB_BUFFER_SIZE = 2 * (1L << 20); // 2 MB (was 8 MB)
+static const int MAX_BLOCK_SIZE = 16 * 1024; // hard limit
+static const int DEFAULT_BLOCK_SIZE = 4 * 1024; // fewer kernel memory problems
+static const int FUSB_BUFFER_SIZE = 1 * (1L << 20); // 1MB
fusb_devhandle *
fusb_sysconfig::make_devhandle (usb_dev_handle *udh)
@@ -37,6 +38,11 @@ int fusb_sysconfig::max_block_size ()
return MAX_BLOCK_SIZE;
}
+int fusb_sysconfig::default_block_size ()
+{
+ return DEFAULT_BLOCK_SIZE;
+}
+
int fusb_sysconfig::default_buffer_size ()
{
return FUSB_BUFFER_SIZE;