diff options
Diffstat (limited to 'util/comm-dev.c')
| -rw-r--r-- | util/comm-dev.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/util/comm-dev.c b/util/comm-dev.c index 2802aeca24..4dae913a82 100644 --- a/util/comm-dev.c +++ b/util/comm-dev.c @@ -24,6 +24,7 @@ static int ec_command_dev(int command, int version, void *indata, int insize) { struct cros_ec_command s_cmd; + int r; s_cmd.command = command; s_cmd.version = version; @@ -33,8 +34,14 @@ static int ec_command_dev(int command, int version, s_cmd.insize = insize; s_cmd.indata = indata; - if (ioctl(fd, CROS_EC_DEV_IOCXCMD, &s_cmd)) - return -1; + r = ioctl(fd, CROS_EC_DEV_IOCXCMD, &s_cmd); + if (r < 0) { + fprintf(stderr, "ioctl %d, errno %d (%s), EC result %d\n", + r, errno, strerror(errno), s_cmd.result); + return r; + } + if (s_cmd.result != EC_RES_SUCCESS) + fprintf(stderr, "EC result %d\n", s_cmd.result); return s_cmd.insize; } |