arno/trezor-firmware
1
0
Fork 0
mirror of https://github.com/trezor/trezor-firmware.git synced 2024-12-16 03:18:09 +00:00
Code Issues Releases Wiki Activity

src/trezor/wire: make sure the writes succeed

Browse Source
This commit is contained in:
Jan Pochyla 2018-02-28 17:17:02 +01:00
parent 8f1ed5edce
commit 8ac915e75f
1 changed files with 12 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
src/trezor/wire/codec_v1.py
View File

@ -1,7 +1,7 @@
from micropython import const from micropython import const
import ustruct import ustruct
from trezor import io from trezor import io, ui
from trezor import loop from trezor import loop
from trezor import utils from trezor import utils
@ -134,8 +134,11 @@ class Writer:
if self.ofs == _REP_LEN: if self.ofs == _REP_LEN:
# we are at the end of the report, flush it # we are at the end of the report, flush it
await write while True:
self.iface.write(self.data) await write
n = self.iface.write(self.data)
if n == len(self.data):
break
self.ofs = _REP_CONT_DATA self.ofs = _REP_CONT_DATA
return nwritten return nwritten
@ -149,5 +152,9 @@ class Writer:
self.data[self.ofs] = 0x00 self.data[self.ofs] = 0x00
self.ofs += 1 self.ofs += 1
await loop.select(self.iface.iface_num() | io.POLL_WRITE) write = loop.select(self.iface.iface_num() | io.POLL_WRITE)
self.iface.write(self.data) while True:
await write
n = self.iface.write(self.data)
if n == len(self.data):
break