tnt has uploaded this change for review.

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e1d/usb: Limit feedback EP transfer size to 3

Newer descriptors have the max packet size set to 3 to save on
isochronous bandwidth.

By specs, the feed back endpoints transfer are 24 bits anyway,
so no point is using anything larger.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Change-Id: I09e259db539e62571fd17fc16ffaa317564ba257
---
M src/usb.c
1 file changed, 1 insertion(+), 1 deletion(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-e1d refs/changes/93/26793/1

diff --git a/src/usb.c b/src/usb.c
index 465aecd..348c104 100644
--- a/src/usb.c
+++ b/src/usb.c
@@ -583,7 +583,7 @@
 
 		line_data->flow_in  = e1uf_create(line, e1_usb_xfer_in,  line_data->ep_in,  4, line_data->pkt_size, 4);
 		line_data->flow_out = e1uf_create(line, e1_usb_xfer_out, line_data->ep_out, 4, line_data->pkt_size, 4);
-		line_data->flow_fb  = e1uf_create(line, e1_usb_xfer_fb,  line_data->ep_fb,  2, 8, 1);
+		line_data->flow_fb  = e1uf_create(line, e1_usb_xfer_fb,  line_data->ep_fb,  2, 3, 1);
 
 		e1uf_start(line_data->flow_in);
 		e1uf_start(line_data->flow_out);

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