Changeset f2d88f3 in mainline for uspace/drv/char/ns8250/ns8250.c
- Timestamp:
- 2019-01-04T21:22:17Z (5 years ago)
- Branches:
- lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
- Children:
- af7b85b
- Parents:
- 06412ba
- File:
-
- 1 edited
Legend:
- Unmodified
- Added
- Removed
-
uspace/drv/char/ns8250/ns8250.c
r06412ba rf2d88f3 246 246 * @param count The number of bytes to be read. 247 247 * @param nread Place to store number of bytes actually read 248 * @param flags @c chardev_f_nonblock not to block waiting for data 249 * even if no data is available 248 250 * 249 251 * @return EOK on success or non-zero error code 250 252 */ 251 static errno_t ns8250_read(chardev_srv_t *srv, void *buf, size_t count, size_t *nread) 253 static errno_t ns8250_read(chardev_srv_t *srv, void *buf, size_t count, size_t *nread, 254 chardev_flags_t flags) 252 255 { 253 256 ns8250_t *ns = srv_ns8250(srv); … … 261 264 262 265 fibril_mutex_lock(&ns->mutex); 263 while (buf_is_empty(&ns->input_buffer)) 266 while ((flags & chardev_f_none) == 0 && 267 buf_is_empty(&ns->input_buffer)) 264 268 fibril_condvar_wait(&ns->input_buffer_available, &ns->mutex); 265 269 while (!buf_is_empty(&ns->input_buffer) && pos < count) {
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