sys64738
/
mspdebug
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

olimex: fix usbtr_recv. 

Partial sends need to skip the sent portion of the buffer before
retrying.
This commit is contained in:
Daniel Beer 2012-02-29 16:08:26 +13:00
parent bdce08a84a
commit 25da331e21
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/olimex.c
View File

@ -203,20 +203,20 @@ static int open_device(struct olimex_transport *tr, struct usb_device *dev)
static int usbtr_send(transport_t tr_base, const uint8_t *data, int len) static int usbtr_send(transport_t tr_base, const uint8_t *data, int len)
{ {
struct olimex_transport *tr = (struct olimex_transport *)tr_base; struct olimex_transport *tr = (struct olimex_transport *)tr_base;
int sent; int sent;
while (len) {
#ifdef DEBUG_OLIMEX #ifdef DEBUG_OLIMEX
debug_hexdump(__FILE__": USB transfer out", data, len); debug_hexdump(__FILE__ ": USB transfer out", data, len);
#endif #endif
while (len) {
sent = usb_bulk_write(tr->handle, tr->out_ep, sent = usb_bulk_write(tr->handle, tr->out_ep,
(char *)data, len, TIMEOUT); (char *)data, len, TIMEOUT);
if (sent < 0) { if (sent <= 0) {
pr_error(__FILE__": can't send data"); pr_error(__FILE__": can't send data");
return -1; return -1;
} }
data += sent;
len -= sent; len -= sent;
} }
@ -239,7 +239,7 @@ static int usbtr_recv(transport_t tr_base, uint8_t *databuf, int max_len)
printc(__FILE__": %s : read %d\n", __FUNCTION__, rlen); printc(__FILE__": %s : read %d\n", __FUNCTION__, rlen);
#endif #endif
if (rlen < 0) { if (rlen <= 0) {
pr_error(__FILE__": can't receive data"); pr_error(__FILE__": can't receive data");
return -1; return -1;
} }